Home / 1,508.07-2,251.92-1,321.59

Finding the Fourth Proportional to 1,508.07, 2,251.92 and 1,321.59

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Solution

The fourth proportional to 1,508.07, 2,251.92 and 1,321.59 is: 1,973.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.07 : 2,251.92 = 1,321.59 : x
  2. Step 2: Convert to fraction form
    1,508.07/2,251.92 = 1,321.59/x
  3. Step 3: Cross multiply
    1,508.07x = 2,251.92 × 1,321.59
  4. Step 4: Simplify right side
    1,508.07x = 2,976,114.95
  5. Step 5: Solve for x
    x = 2,976,114.95/1,508.07
  6. Step 6: Final answer
    x = 1,973.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.