Home / 1,248.26-1,872.66-623.90

Finding the Fourth Proportional to 1,248.26, 1,872.66 and 623.90

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Solution

The fourth proportional to 1,248.26, 1,872.66 and 623.90 is: 935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248.26 : 1,872.66 = 623.90 : x
  2. Step 2: Convert to fraction form
    1,248.26/1,872.66 = 623.90/x
  3. Step 3: Cross multiply
    1,248.26x = 1,872.66 × 623.90
  4. Step 4: Simplify right side
    1,248.26x = 1,168,342.04
  5. Step 5: Solve for x
    x = 1,168,342.04/1,248.26
  6. Step 6: Final answer
    x = 935.98

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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.