Home / 1,257.24-1,892.46-1,146.50

Finding the Fourth Proportional to 1,257.24, 1,892.46 and 1,146.50

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Solution

The fourth proportional to 1,257.24, 1,892.46 and 1,146.50 is: 1,725.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257.24 : 1,892.46 = 1,146.50 : x
  2. Step 2: Convert to fraction form
    1,257.24/1,892.46 = 1,146.50/x
  3. Step 3: Cross multiply
    1,257.24x = 1,892.46 × 1,146.50
  4. Step 4: Simplify right side
    1,257.24x = 2,169,695.93
  5. Step 5: Solve for x
    x = 2,169,695.93/1,257.24
  6. Step 6: Final answer
    x = 1,725.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.