Home / 7,621.66-11,432.46-2,691.58

Finding the Fourth Proportional to 7,621.66, 11,432.46 and 2,691.58

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Solution

The fourth proportional to 7,621.66, 11,432.46 and 2,691.58 is: 4,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.66 : 11,432.46 = 2,691.58 : x
  2. Step 2: Convert to fraction form
    7,621.66/11,432.46 = 2,691.58/x
  3. Step 3: Cross multiply
    7,621.66x = 11,432.46 × 2,691.58
  4. Step 4: Simplify right side
    7,621.66x = 30,771,380.69
  5. Step 5: Solve for x
    x = 30,771,380.69/7,621.66
  6. Step 6: Final answer
    x = 4,037.36

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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.