Home / 4,920.12-7,381.32-1,632.96

Finding the Fourth Proportional to 4,920.12, 7,381.32 and 1,632.96

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Solution

The fourth proportional to 4,920.12, 7,381.32 and 1,632.96 is: 2,449.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.12 : 7,381.32 = 1,632.96 : x
  2. Step 2: Convert to fraction form
    4,920.12/7,381.32 = 1,632.96/x
  3. Step 3: Cross multiply
    4,920.12x = 7,381.32 × 1,632.96
  4. Step 4: Simplify right side
    4,920.12x = 12,053,400.31
  5. Step 5: Solve for x
    x = 12,053,400.31/4,920.12
  6. Step 6: Final answer
    x = 2,449.82

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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.