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Finding the Fourth Proportional to 7,251.52, 10,880.70 and 2,867.80

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Solution

The fourth proportional to 7,251.52, 10,880.70 and 2,867.80 is: 4,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,251.52 : 10,880.70 = 2,867.80 : x
  2. Step 2: Convert to fraction form
    7,251.52/10,880.70 = 2,867.80/x
  3. Step 3: Cross multiply
    7,251.52x = 10,880.70 × 2,867.80
  4. Step 4: Simplify right side
    7,251.52x = 31,203,671.46
  5. Step 5: Solve for x
    x = 31,203,671.46/7,251.52
  6. Step 6: Final answer
    x = 4,303.05

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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.