Home / 6,139.20-9,209.08-1,757.28

Finding the Fourth Proportional to 6,139.20, 9,209.08 and 1,757.28

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Solution

The fourth proportional to 6,139.20, 9,209.08 and 1,757.28 is: 2,636.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,139.20 : 9,209.08 = 1,757.28 : x
  2. Step 2: Convert to fraction form
    6,139.20/9,209.08 = 1,757.28/x
  3. Step 3: Cross multiply
    6,139.20x = 9,209.08 × 1,757.28
  4. Step 4: Simplify right side
    6,139.20x = 16,182,932.10
  5. Step 5: Solve for x
    x = 16,182,932.10/6,139.20
  6. Step 6: Final answer
    x = 2,636.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.