Home / 2,438.27-3,655.10-2,221.59

Finding the Fourth Proportional to 2,438.27, 3,655.10 and 2,221.59

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Solution

The fourth proportional to 2,438.27, 3,655.10 and 2,221.59 is: 3,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438.27 : 3,655.10 = 2,221.59 : x
  2. Step 2: Convert to fraction form
    2,438.27/3,655.10 = 2,221.59/x
  3. Step 3: Cross multiply
    2,438.27x = 3,655.10 × 2,221.59
  4. Step 4: Simplify right side
    2,438.27x = 8,120,146.62
  5. Step 5: Solve for x
    x = 8,120,146.62/2,438.27
  6. Step 6: Final answer
    x = 3,330.29

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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.