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Finding the Fourth Proportional to 5,131.77, 7,693.73 and 4,251.57

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Solution

The fourth proportional to 5,131.77, 7,693.73 and 4,251.57 is: 6,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.77 : 7,693.73 = 4,251.57 : x
  2. Step 2: Convert to fraction form
    5,131.77/7,693.73 = 4,251.57/x
  3. Step 3: Cross multiply
    5,131.77x = 7,693.73 × 4,251.57
  4. Step 4: Simplify right side
    5,131.77x = 32,710,431.66
  5. Step 5: Solve for x
    x = 32,710,431.66/5,131.77
  6. Step 6: Final answer
    x = 6,374.10

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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.