Home / 2,920.50-4,372.02-2,229.69

Finding the Fourth Proportional to 2,920.50, 4,372.02 and 2,229.69

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Solution

The fourth proportional to 2,920.50, 4,372.02 and 2,229.69 is: 3,337.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.50 : 4,372.02 = 2,229.69 : x
  2. Step 2: Convert to fraction form
    2,920.50/4,372.02 = 2,229.69/x
  3. Step 3: Cross multiply
    2,920.50x = 4,372.02 × 2,229.69
  4. Step 4: Simplify right side
    2,920.50x = 9,748,249.27
  5. Step 5: Solve for x
    x = 9,748,249.27/2,920.50
  6. Step 6: Final answer
    x = 3,337.87

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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.