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Finding the Fourth Proportional to 2,385.89, 3,578.97 and 924.92

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Solution

The fourth proportional to 2,385.89, 3,578.97 and 924.92 is: 1,387.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.89 : 3,578.97 = 924.92 : x
  2. Step 2: Convert to fraction form
    2,385.89/3,578.97 = 924.92/x
  3. Step 3: Cross multiply
    2,385.89x = 3,578.97 × 924.92
  4. Step 4: Simplify right side
    2,385.89x = 3,310,243.04
  5. Step 5: Solve for x
    x = 3,310,243.04/2,385.89
  6. Step 6: Final answer
    x = 1,387.43

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1.5x scale

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.