Home / 3,650.60-5,038.76-2,079.20

Finding the Fourth Proportional to 3,650.60, 5,038.76 and 2,079.20

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Solution

The fourth proportional to 3,650.60, 5,038.76 and 2,079.20 is: 2,869.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,650.60 : 5,038.76 = 2,079.20 : x
  2. Step 2: Convert to fraction form
    3,650.60/5,038.76 = 2,079.20/x
  3. Step 3: Cross multiply
    3,650.60x = 5,038.76 × 2,079.20
  4. Step 4: Simplify right side
    3,650.60x = 10,476,589.79
  5. Step 5: Solve for x
    x = 10,476,589.79/3,650.60
  6. Step 6: Final answer
    x = 2,869.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.