Home / 6,864.48-9,472.98-3,720.72

Finding the Fourth Proportional to 6,864.48, 9,472.98 and 3,720.72

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Solution

The fourth proportional to 6,864.48, 9,472.98 and 3,720.72 is: 5,134.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,864.48 : 9,472.98 = 3,720.72 : x
  2. Step 2: Convert to fraction form
    6,864.48/9,472.98 = 3,720.72/x
  3. Step 3: Cross multiply
    6,864.48x = 9,472.98 × 3,720.72
  4. Step 4: Simplify right side
    6,864.48x = 35,246,306.15
  5. Step 5: Solve for x
    x = 35,246,306.15/6,864.48
  6. Step 6: Final answer
    x = 5,134.59

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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.