Home / 1,423.38-1,962.14-1,124.12

Finding the Fourth Proportional to 1,423.38, 1,962.14 and 1,124.12

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Solution

The fourth proportional to 1,423.38, 1,962.14 and 1,124.12 is: 1,549.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.38 : 1,962.14 = 1,124.12 : x
  2. Step 2: Convert to fraction form
    1,423.38/1,962.14 = 1,124.12/x
  3. Step 3: Cross multiply
    1,423.38x = 1,962.14 × 1,124.12
  4. Step 4: Simplify right side
    1,423.38x = 2,205,680.82
  5. Step 5: Solve for x
    x = 2,205,680.82/1,423.38
  6. Step 6: Final answer
    x = 1,549.61

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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.