Home / 3,780.28-5,671.46-2,691.58

Finding the Fourth Proportional to 3,780.28, 5,671.46 and 2,691.58

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Solution

The fourth proportional to 3,780.28, 5,671.46 and 2,691.58 is: 4,038.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.28 : 5,671.46 = 2,691.58 : x
  2. Step 2: Convert to fraction form
    3,780.28/5,671.46 = 2,691.58/x
  3. Step 3: Cross multiply
    3,780.28x = 5,671.46 × 2,691.58
  4. Step 4: Simplify right side
    3,780.28x = 15,265,188.31
  5. Step 5: Solve for x
    x = 15,265,188.31/3,780.28
  6. Step 6: Final answer
    x = 4,038.11

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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.