Home / 4,321.12-6,482.52-1,398.64

Finding the Fourth Proportional to 4,321.12, 6,482.52 and 1,398.64

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Solution

The fourth proportional to 4,321.12, 6,482.52 and 1,398.64 is: 2,098.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,321.12 : 6,482.52 = 1,398.64 : x
  2. Step 2: Convert to fraction form
    4,321.12/6,482.52 = 1,398.64/x
  3. Step 3: Cross multiply
    4,321.12x = 6,482.52 × 1,398.64
  4. Step 4: Simplify right side
    4,321.12x = 9,066,711.77
  5. Step 5: Solve for x
    x = 9,066,711.77/4,321.12
  6. Step 6: Final answer
    x = 2,098.23

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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.