Home / 1,631.38-2,445.49-1,076.51

Finding the Fourth Proportional to 1,631.38, 2,445.49 and 1,076.51

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Solution

The fourth proportional to 1,631.38, 2,445.49 and 1,076.51 is: 1,613.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.38 : 2,445.49 = 1,076.51 : x
  2. Step 2: Convert to fraction form
    1,631.38/2,445.49 = 1,076.51/x
  3. Step 3: Cross multiply
    1,631.38x = 2,445.49 × 1,076.51
  4. Step 4: Simplify right side
    1,631.38x = 2,632,583.56
  5. Step 5: Solve for x
    x = 2,632,583.56/1,631.38
  6. Step 6: Final answer
    x = 1,613.72

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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.