Home / 7,422.40-11,139.24-2,746.83

Finding the Fourth Proportional to 7,422.40, 11,139.24 and 2,746.83

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Solution

The fourth proportional to 7,422.40, 11,139.24 and 2,746.83 is: 4,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,422.40 : 11,139.24 = 2,746.83 : x
  2. Step 2: Convert to fraction form
    7,422.40/11,139.24 = 2,746.83/x
  3. Step 3: Cross multiply
    7,422.40x = 11,139.24 × 2,746.83
  4. Step 4: Simplify right side
    7,422.40x = 30,597,598.61
  5. Step 5: Solve for x
    x = 30,597,598.61/7,422.40
  6. Step 6: Final answer
    x = 4,122.33

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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.