Home / 6,543.30-9,029.79-3,890.19

Finding the Fourth Proportional to 6,543.30, 9,029.79 and 3,890.19

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Solution

The fourth proportional to 6,543.30, 9,029.79 and 3,890.19 is: 5,368.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.30 : 9,029.79 = 3,890.19 : x
  2. Step 2: Convert to fraction form
    6,543.30/9,029.79 = 3,890.19/x
  3. Step 3: Cross multiply
    6,543.30x = 9,029.79 × 3,890.19
  4. Step 4: Simplify right side
    6,543.30x = 35,127,598.76
  5. Step 5: Solve for x
    x = 35,127,598.76/6,543.30
  6. Step 6: Final answer
    x = 5,368.48

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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.