Home / 2,292.20-3,438.30-1,123.17

Finding the Fourth Proportional to 2,292.20, 3,438.30 and 1,123.17

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Solution

The fourth proportional to 2,292.20, 3,438.30 and 1,123.17 is: 1,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,292.20 : 3,438.30 = 1,123.17 : x
  2. Step 2: Convert to fraction form
    2,292.20/3,438.30 = 1,123.17/x
  3. Step 3: Cross multiply
    2,292.20x = 3,438.30 × 1,123.17
  4. Step 4: Simplify right side
    2,292.20x = 3,861,795.41
  5. Step 5: Solve for x
    x = 3,861,795.41/2,292.20
  6. Step 6: Final answer
    x = 1,684.76

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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.