Home / 1,450.38-2,000.16-1,118.28

Finding the Fourth Proportional to 1,450.38, 2,000.16 and 1,118.28

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Solution

The fourth proportional to 1,450.38, 2,000.16 and 1,118.28 is: 1,542.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.38 : 2,000.16 = 1,118.28 : x
  2. Step 2: Convert to fraction form
    1,450.38/2,000.16 = 1,118.28/x
  3. Step 3: Cross multiply
    1,450.38x = 2,000.16 × 1,118.28
  4. Step 4: Simplify right side
    1,450.38x = 2,236,738.92
  5. Step 5: Solve for x
    x = 2,236,738.92/1,450.38
  6. Step 6: Final answer
    x = 1,542.17

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Half scale
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1.5x scale

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.