Home / 6,780.92-9,357.17-4,129.18

Finding the Fourth Proportional to 6,780.92, 9,357.17 and 4,129.18

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Solution

The fourth proportional to 6,780.92, 9,357.17 and 4,129.18 is: 5,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.92 : 9,357.17 = 4,129.18 : x
  2. Step 2: Convert to fraction form
    6,780.92/9,357.17 = 4,129.18/x
  3. Step 3: Cross multiply
    6,780.92x = 9,357.17 × 4,129.18
  4. Step 4: Simplify right side
    6,780.92x = 38,637,418.41
  5. Step 5: Solve for x
    x = 38,637,418.41/6,780.92
  6. Step 6: Final answer
    x = 5,697.97

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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.