Home / 1,110.27-1,532.10-612.87

Finding the Fourth Proportional to 1,110.27, 1,532.10 and 612.87

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Solution

The fourth proportional to 1,110.27, 1,532.10 and 612.87 is: 845.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.27 : 1,532.10 = 612.87 : x
  2. Step 2: Convert to fraction form
    1,110.27/1,532.10 = 612.87/x
  3. Step 3: Cross multiply
    1,110.27x = 1,532.10 × 612.87
  4. Step 4: Simplify right side
    1,110.27x = 938,978.13
  5. Step 5: Solve for x
    x = 938,978.13/1,110.27
  6. Step 6: Final answer
    x = 845.72

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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.