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Finding the Fourth Proportional to 7,073.27, 9,761.12 and 3,886.77

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Solution

The fourth proportional to 7,073.27, 9,761.12 and 3,886.77 is: 5,363.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,073.27 : 9,761.12 = 3,886.77 : x
  2. Step 2: Convert to fraction form
    7,073.27/9,761.12 = 3,886.77/x
  3. Step 3: Cross multiply
    7,073.27x = 9,761.12 × 3,886.77
  4. Step 4: Simplify right side
    7,073.27x = 37,939,228.38
  5. Step 5: Solve for x
    x = 37,939,228.38/7,073.27
  6. Step 6: Final answer
    x = 5,363.75

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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.