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Finding the Fourth Proportional to 5,761.35, 8,636.41 and 3,126.47

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Solution

The fourth proportional to 5,761.35, 8,636.41 and 3,126.47 is: 4,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,761.35 : 8,636.41 = 3,126.47 : x
  2. Step 2: Convert to fraction form
    5,761.35/8,636.41 = 3,126.47/x
  3. Step 3: Cross multiply
    5,761.35x = 8,636.41 × 3,126.47
  4. Step 4: Simplify right side
    5,761.35x = 27,001,490.55
  5. Step 5: Solve for x
    x = 27,001,490.55/5,761.35
  6. Step 6: Final answer
    x = 4,686.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.