Home / 1,114.18-1,537.50-616.79

Finding the Fourth Proportional to 1,114.18, 1,537.50 and 616.79

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Solution

The fourth proportional to 1,114.18, 1,537.50 and 616.79 is: 851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114.18 : 1,537.50 = 616.79 : x
  2. Step 2: Convert to fraction form
    1,114.18/1,537.50 = 616.79/x
  3. Step 3: Cross multiply
    1,114.18x = 1,537.50 × 616.79
  4. Step 4: Simplify right side
    1,114.18x = 948,314.63
  5. Step 5: Solve for x
    x = 948,314.63/1,114.18
  6. Step 6: Final answer
    x = 851.13

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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.