Home / 1,540.12-2,126.38-951.52

Finding the Fourth Proportional to 1,540.12, 2,126.38 and 951.52

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Solution

The fourth proportional to 1,540.12, 2,126.38 and 951.52 is: 1,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.12 : 2,126.38 = 951.52 : x
  2. Step 2: Convert to fraction form
    1,540.12/2,126.38 = 951.52/x
  3. Step 3: Cross multiply
    1,540.12x = 2,126.38 × 951.52
  4. Step 4: Simplify right side
    1,540.12x = 2,023,293.10
  5. Step 5: Solve for x
    x = 2,023,293.10/1,540.12
  6. Step 6: Final answer
    x = 1,313.72

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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.