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Finding the Fourth Proportional to 1,250.33, 1,724.34 and 807.77

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Solution

The fourth proportional to 1,250.33, 1,724.34 and 807.77 is: 1,114.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250.33 : 1,724.34 = 807.77 : x
  2. Step 2: Convert to fraction form
    1,250.33/1,724.34 = 807.77/x
  3. Step 3: Cross multiply
    1,250.33x = 1,724.34 × 807.77
  4. Step 4: Simplify right side
    1,250.33x = 1,392,861.50
  5. Step 5: Solve for x
    x = 1,392,861.50/1,250.33
  6. Step 6: Final answer
    x = 1,114.00

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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.