Home / 1,617.02-2,423.37-749.42

Finding the Fourth Proportional to 1,617.02, 2,423.37 and 749.42

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Solution

The fourth proportional to 1,617.02, 2,423.37 and 749.42 is: 1,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.02 : 2,423.37 = 749.42 : x
  2. Step 2: Convert to fraction form
    1,617.02/2,423.37 = 749.42/x
  3. Step 3: Cross multiply
    1,617.02x = 2,423.37 × 749.42
  4. Step 4: Simplify right side
    1,617.02x = 1,816,121.95
  5. Step 5: Solve for x
    x = 1,816,121.95/1,617.02
  6. Step 6: Final answer
    x = 1,123.13

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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.