Home / 1,450.89-2,002.22-787.74

Finding the Fourth Proportional to 1,450.89, 2,002.22 and 787.74

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Solution

The fourth proportional to 1,450.89, 2,002.22 and 787.74 is: 1,087.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.89 : 2,002.22 = 787.74 : x
  2. Step 2: Convert to fraction form
    1,450.89/2,002.22 = 787.74/x
  3. Step 3: Cross multiply
    1,450.89x = 2,002.22 × 787.74
  4. Step 4: Simplify right side
    1,450.89x = 1,577,235.98
  5. Step 5: Solve for x
    x = 1,577,235.98/1,450.89
  6. Step 6: Final answer
    x = 1,087.08

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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.