Home / 1,110.26-1,532.40-732.20

Finding the Fourth Proportional to 1,110.26, 1,532.40 and 732.20

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Solution

The fourth proportional to 1,110.26, 1,532.40 and 732.20 is: 1,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.26 : 1,532.40 = 732.20 : x
  2. Step 2: Convert to fraction form
    1,110.26/1,532.40 = 732.20/x
  3. Step 3: Cross multiply
    1,110.26x = 1,532.40 × 732.20
  4. Step 4: Simplify right side
    1,110.26x = 1,122,023.28
  5. Step 5: Solve for x
    x = 1,122,023.28/1,110.26
  6. Step 6: Final answer
    x = 1,010.60

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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.