Home / 2,721.64-3,755.58-1,542.76

Finding the Fourth Proportional to 2,721.64, 3,755.58 and 1,542.76

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Solution

The fourth proportional to 2,721.64, 3,755.58 and 1,542.76 is: 2,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.64 : 3,755.58 = 1,542.76 : x
  2. Step 2: Convert to fraction form
    2,721.64/3,755.58 = 1,542.76/x
  3. Step 3: Cross multiply
    2,721.64x = 3,755.58 × 1,542.76
  4. Step 4: Simplify right side
    2,721.64x = 5,793,958.60
  5. Step 5: Solve for x
    x = 5,793,958.60/2,721.64
  6. Step 6: Final answer
    x = 2,128.85

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1.5x scale

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.