Home / 1,231.13-1,845.72-614.50

Finding the Fourth Proportional to 1,231.13, 1,845.72 and 614.50

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Solution

The fourth proportional to 1,231.13, 1,845.72 and 614.50 is: 921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.13 : 1,845.72 = 614.50 : x
  2. Step 2: Convert to fraction form
    1,231.13/1,845.72 = 614.50/x
  3. Step 3: Cross multiply
    1,231.13x = 1,845.72 × 614.50
  4. Step 4: Simplify right side
    1,231.13x = 1,134,185.71
  5. Step 5: Solve for x
    x = 1,134,185.71/1,231.13
  6. Step 6: Final answer
    x = 921.26

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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.