Home / 6,931.77-9,565.69-3,787.98

Finding the Fourth Proportional to 6,931.77, 9,565.69 and 3,787.98

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Solution

The fourth proportional to 6,931.77, 9,565.69 and 3,787.98 is: 5,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.77 : 9,565.69 = 3,787.98 : x
  2. Step 2: Convert to fraction form
    6,931.77/9,565.69 = 3,787.98/x
  3. Step 3: Cross multiply
    6,931.77x = 9,565.69 × 3,787.98
  4. Step 4: Simplify right side
    6,931.77x = 36,234,642.41
  5. Step 5: Solve for x
    x = 36,234,642.41/6,931.77
  6. Step 6: Final answer
    x = 5,227.33

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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.