Home / 1,440.36-2,158.92-1,028.88

Finding the Fourth Proportional to 1,440.36, 2,158.92 and 1,028.88

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Solution

The fourth proportional to 1,440.36, 2,158.92 and 1,028.88 is: 1,542.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440.36 : 2,158.92 = 1,028.88 : x
  2. Step 2: Convert to fraction form
    1,440.36/2,158.92 = 1,028.88/x
  3. Step 3: Cross multiply
    1,440.36x = 2,158.92 × 1,028.88
  4. Step 4: Simplify right side
    1,440.36x = 2,221,269.61
  5. Step 5: Solve for x
    x = 2,221,269.61/1,440.36
  6. Step 6: Final answer
    x = 1,542.16

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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.