Home / 6,239.19-8,609.78-3,550.20

Finding the Fourth Proportional to 6,239.19, 8,609.78 and 3,550.20

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Solution

The fourth proportional to 6,239.19, 8,609.78 and 3,550.20 is: 4,899.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.19 : 8,609.78 = 3,550.20 : x
  2. Step 2: Convert to fraction form
    6,239.19/8,609.78 = 3,550.20/x
  3. Step 3: Cross multiply
    6,239.19x = 8,609.78 × 3,550.20
  4. Step 4: Simplify right side
    6,239.19x = 30,566,423.21
  5. Step 5: Solve for x
    x = 30,566,423.21/6,239.19
  6. Step 6: Final answer
    x = 4,899.10

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Half scale
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Double scale
Find fourth proportional to 6,240.19, 8,611.15 and 3,551.20
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.