Home / 6,228.43-8,596.23-3,990.19

Finding the Fourth Proportional to 6,228.43, 8,596.23 and 3,990.19

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Solution

The fourth proportional to 6,228.43, 8,596.23 and 3,990.19 is: 5,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,228.43 : 8,596.23 = 3,990.19 : x
  2. Step 2: Convert to fraction form
    6,228.43/8,596.23 = 3,990.19/x
  3. Step 3: Cross multiply
    6,228.43x = 8,596.23 × 3,990.19
  4. Step 4: Simplify right side
    6,228.43x = 34,300,590.98
  5. Step 5: Solve for x
    x = 34,300,590.98/6,228.43
  6. Step 6: Final answer
    x = 5,507.10

Related Problems

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Half scale
Find fourth proportional to 12,456.86, 17,192.46 and 7,980.38
Double scale
Find fourth proportional to 6,229.43, 8,597.61 and 3,991.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.