Home / 1,445.88-2,167.92-623.70

Finding the Fourth Proportional to 1,445.88, 2,167.92 and 623.70

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Solution

The fourth proportional to 1,445.88, 2,167.92 and 623.70 is: 935.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.88 : 2,167.92 = 623.70 : x
  2. Step 2: Convert to fraction form
    1,445.88/2,167.92 = 623.70/x
  3. Step 3: Cross multiply
    1,445.88x = 2,167.92 × 623.70
  4. Step 4: Simplify right side
    1,445.88x = 1,352,131.70
  5. Step 5: Solve for x
    x = 1,352,131.70/1,445.88
  6. Step 6: Final answer
    x = 935.16

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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.