Home / 2,631.60-3,631.64-1,452.78

Finding the Fourth Proportional to 2,631.60, 3,631.64 and 1,452.78

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Solution

The fourth proportional to 2,631.60, 3,631.64 and 1,452.78 is: 2,004.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.60 : 3,631.64 = 1,452.78 : x
  2. Step 2: Convert to fraction form
    2,631.60/3,631.64 = 1,452.78/x
  3. Step 3: Cross multiply
    2,631.60x = 3,631.64 × 1,452.78
  4. Step 4: Simplify right side
    2,631.60x = 5,275,966.70
  5. Step 5: Solve for x
    x = 5,275,966.70/2,631.60
  6. Step 6: Final answer
    x = 2,004.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.