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Finding the Fourth Proportional to 1,251.49, 1,875.60 and 558.37

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Solution

The fourth proportional to 1,251.49, 1,875.60 and 558.37 is: 836.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251.49 : 1,875.60 = 558.37 : x
  2. Step 2: Convert to fraction form
    1,251.49/1,875.60 = 558.37/x
  3. Step 3: Cross multiply
    1,251.49x = 1,875.60 × 558.37
  4. Step 4: Simplify right side
    1,251.49x = 1,047,278.77
  5. Step 5: Solve for x
    x = 1,047,278.77/1,251.49
  6. Step 6: Final answer
    x = 836.83

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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.