Home / 1,445.06-2,167.13-623.12

Finding the Fourth Proportional to 1,445.06, 2,167.13 and 623.12

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Solution

The fourth proportional to 1,445.06, 2,167.13 and 623.12 is: 934.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445.06 : 2,167.13 = 623.12 : x
  2. Step 2: Convert to fraction form
    1,445.06/2,167.13 = 623.12/x
  3. Step 3: Cross multiply
    1,445.06x = 2,167.13 × 623.12
  4. Step 4: Simplify right side
    1,445.06x = 1,350,372.77
  5. Step 5: Solve for x
    x = 1,350,372.77/1,445.06
  6. Step 6: Final answer
    x = 934.47

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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.