Home / 1,450.91-2,002.25-787.76

Finding the Fourth Proportional to 1,450.91, 2,002.25 and 787.76

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Solution

The fourth proportional to 1,450.91, 2,002.25 and 787.76 is: 1,087.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.91 : 2,002.25 = 787.76 : x
  2. Step 2: Convert to fraction form
    1,450.91/2,002.25 = 787.76/x
  3. Step 3: Cross multiply
    1,450.91x = 2,002.25 × 787.76
  4. Step 4: Simplify right side
    1,450.91x = 1,577,291.93
  5. Step 5: Solve for x
    x = 1,577,291.93/1,450.91
  6. Step 6: Final answer
    x = 1,087.10

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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.