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Finding the Fourth Proportional to 4,321.52, 6,482.12 and 1,399.76

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Solution

The fourth proportional to 4,321.52, 6,482.12 and 1,399.76 is: 2,099.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.52 : 6,482.12 = 1,399.76 : x
  2. Step 2: Convert to fraction form
    4,321.52/6,482.12 = 1,399.76/x
  3. Step 3: Cross multiply
    4,321.52x = 6,482.12 × 1,399.76
  4. Step 4: Simplify right side
    4,321.52x = 9,073,412.29
  5. Step 5: Solve for x
    x = 9,073,412.29/4,321.52
  6. Step 6: Final answer
    x = 2,099.59

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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.