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Finding the Fourth Proportional to 5,857.66, 8,755.07 and 5,111.38

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Solution

The fourth proportional to 5,857.66, 8,755.07 and 5,111.38 is: 7,639.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,857.66 : 8,755.07 = 5,111.38 : x
  2. Step 2: Convert to fraction form
    5,857.66/8,755.07 = 5,111.38/x
  3. Step 3: Cross multiply
    5,857.66x = 8,755.07 × 5,111.38
  4. Step 4: Simplify right side
    5,857.66x = 44,750,489.70
  5. Step 5: Solve for x
    x = 44,750,489.70/5,857.66
  6. Step 6: Final answer
    x = 7,639.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.