Home / 7,426.20-11,139.36-2,231.76

Finding the Fourth Proportional to 7,426.20, 11,139.36 and 2,231.76

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Solution

The fourth proportional to 7,426.20, 11,139.36 and 2,231.76 is: 3,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.20 : 11,139.36 = 2,231.76 : x
  2. Step 2: Convert to fraction form
    7,426.20/11,139.36 = 2,231.76/x
  3. Step 3: Cross multiply
    7,426.20x = 11,139.36 × 2,231.76
  4. Step 4: Simplify right side
    7,426.20x = 24,860,378.07
  5. Step 5: Solve for x
    x = 24,860,378.07/7,426.20
  6. Step 6: Final answer
    x = 3,347.66

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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.