Home / 1,356.18-2,033.59-1,125.18

Finding the Fourth Proportional to 1,356.18, 2,033.59 and 1,125.18

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Solution

The fourth proportional to 1,356.18, 2,033.59 and 1,125.18 is: 1,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.18 : 2,033.59 = 1,125.18 : x
  2. Step 2: Convert to fraction form
    1,356.18/2,033.59 = 1,125.18/x
  3. Step 3: Cross multiply
    1,356.18x = 2,033.59 × 1,125.18
  4. Step 4: Simplify right side
    1,356.18x = 2,288,154.80
  5. Step 5: Solve for x
    x = 2,288,154.80/1,356.18
  6. Step 6: Final answer
    x = 1,687.21

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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.