Home / 1,151.26-1,588.11-752.80

Finding the Fourth Proportional to 1,151.26, 1,588.11 and 752.80

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Solution

The fourth proportional to 1,151.26, 1,588.11 and 752.80 is: 1,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.26 : 1,588.11 = 752.80 : x
  2. Step 2: Convert to fraction form
    1,151.26/1,588.11 = 752.80/x
  3. Step 3: Cross multiply
    1,151.26x = 1,588.11 × 752.80
  4. Step 4: Simplify right side
    1,151.26x = 1,195,523.16
  5. Step 5: Solve for x
    x = 1,195,523.16/1,151.26
  6. Step 6: Final answer
    x = 1,038.44

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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.