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Finding the Fourth Proportional to 7,451.64, 10,281.08 and 4,621.12

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Solution

The fourth proportional to 7,451.64, 10,281.08 and 4,621.12 is: 6,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,451.64 : 10,281.08 = 4,621.12 : x
  2. Step 2: Convert to fraction form
    7,451.64/10,281.08 = 4,621.12/x
  3. Step 3: Cross multiply
    7,451.64x = 10,281.08 × 4,621.12
  4. Step 4: Simplify right side
    7,451.64x = 47,510,104.41
  5. Step 5: Solve for x
    x = 47,510,104.41/7,451.64
  6. Step 6: Final answer
    x = 6,375.79

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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.