Home / 6,931.16-9,565.39-4,278.61

Finding the Fourth Proportional to 6,931.16, 9,565.39 and 4,278.61

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Solution

The fourth proportional to 6,931.16, 9,565.39 and 4,278.61 is: 5,904.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.16 : 9,565.39 = 4,278.61 : x
  2. Step 2: Convert to fraction form
    6,931.16/9,565.39 = 4,278.61/x
  3. Step 3: Cross multiply
    6,931.16x = 9,565.39 × 4,278.61
  4. Step 4: Simplify right side
    6,931.16x = 40,926,538.70
  5. Step 5: Solve for x
    x = 40,926,538.70/6,931.16
  6. Step 6: Final answer
    x = 5,904.72

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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.