Home / 2,049.20-3,071.40-951.24

Finding the Fourth Proportional to 2,049.20, 3,071.40 and 951.24

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Solution

The fourth proportional to 2,049.20, 3,071.40 and 951.24 is: 1,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.20 : 3,071.40 = 951.24 : x
  2. Step 2: Convert to fraction form
    2,049.20/3,071.40 = 951.24/x
  3. Step 3: Cross multiply
    2,049.20x = 3,071.40 × 951.24
  4. Step 4: Simplify right side
    2,049.20x = 2,921,638.54
  5. Step 5: Solve for x
    x = 2,921,638.54/2,049.20
  6. Step 6: Final answer
    x = 1,425.75

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1.5x scale

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.