Home / 3,869.34-5,337.66-2,377.60

Finding the Fourth Proportional to 3,869.34, 5,337.66 and 2,377.60

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Solution

The fourth proportional to 3,869.34, 5,337.66 and 2,377.60 is: 3,279.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.34 : 5,337.66 = 2,377.60 : x
  2. Step 2: Convert to fraction form
    3,869.34/5,337.66 = 2,377.60/x
  3. Step 3: Cross multiply
    3,869.34x = 5,337.66 × 2,377.60
  4. Step 4: Simplify right side
    3,869.34x = 12,690,820.42
  5. Step 5: Solve for x
    x = 12,690,820.42/3,869.34
  6. Step 6: Final answer
    x = 3,279.84

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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.