Home / 6,397.20-8,828.79-3,565.04

Finding the Fourth Proportional to 6,397.20, 8,828.79 and 3,565.04

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Solution

The fourth proportional to 6,397.20, 8,828.79 and 3,565.04 is: 4,920.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,397.20 : 8,828.79 = 3,565.04 : x
  2. Step 2: Convert to fraction form
    6,397.20/8,828.79 = 3,565.04/x
  3. Step 3: Cross multiply
    6,397.20x = 8,828.79 × 3,565.04
  4. Step 4: Simplify right side
    6,397.20x = 31,474,958.52
  5. Step 5: Solve for x
    x = 31,474,958.52/6,397.20
  6. Step 6: Final answer
    x = 4,920.11

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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.