Home / 1,445.10-2,167.82-623.46

Finding the Fourth Proportional to 1,445.10, 2,167.82 and 623.46

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Solution

The fourth proportional to 1,445.10, 2,167.82 and 623.46 is: 935.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.10 : 2,167.82 = 623.46 : x
  2. Step 2: Convert to fraction form
    1,445.10/2,167.82 = 623.46/x
  3. Step 3: Cross multiply
    1,445.10x = 2,167.82 × 623.46
  4. Step 4: Simplify right side
    1,445.10x = 1,351,549.06
  5. Step 5: Solve for x
    x = 1,351,549.06/1,445.10
  6. Step 6: Final answer
    x = 935.26

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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.