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Finding the Fourth Proportional to 1,135.62, 1,569.04 and 1,010.18

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Solution

The fourth proportional to 1,135.62, 1,569.04 and 1,010.18 is: 1,395.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135.62 : 1,569.04 = 1,010.18 : x
  2. Step 2: Convert to fraction form
    1,135.62/1,569.04 = 1,010.18/x
  3. Step 3: Cross multiply
    1,135.62x = 1,569.04 × 1,010.18
  4. Step 4: Simplify right side
    1,135.62x = 1,585,012.83
  5. Step 5: Solve for x
    x = 1,585,012.83/1,135.62
  6. Step 6: Final answer
    x = 1,395.72

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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.