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Finding the Fourth Proportional to 1,672.68, 2,508.72 and 894.24

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Solution

The fourth proportional to 1,672.68, 2,508.72 and 894.24 is: 1,341.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672.68 : 2,508.72 = 894.24 : x
  2. Step 2: Convert to fraction form
    1,672.68/2,508.72 = 894.24/x
  3. Step 3: Cross multiply
    1,672.68x = 2,508.72 × 894.24
  4. Step 4: Simplify right side
    1,672.68x = 2,243,397.77
  5. Step 5: Solve for x
    x = 2,243,397.77/1,672.68
  6. Step 6: Final answer
    x = 1,341.20

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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.