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Finding the Fourth Proportional to 6,877.71, 9,491.38 and 3,733.90

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Solution

The fourth proportional to 6,877.71, 9,491.38 and 3,733.90 is: 5,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,877.71 : 9,491.38 = 3,733.90 : x
  2. Step 2: Convert to fraction form
    6,877.71/9,491.38 = 3,733.90/x
  3. Step 3: Cross multiply
    6,877.71x = 9,491.38 × 3,733.90
  4. Step 4: Simplify right side
    6,877.71x = 35,439,830.72
  5. Step 5: Solve for x
    x = 35,439,830.72/6,877.71
  6. Step 6: Final answer
    x = 5,152.85

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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.