Home / 4,920.48-7,381.20-1,632.80

Finding the Fourth Proportional to 4,920.48, 7,381.20 and 1,632.80

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Solution

The fourth proportional to 4,920.48, 7,381.20 and 1,632.80 is: 2,449.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.48 : 7,381.20 = 1,632.80 : x
  2. Step 2: Convert to fraction form
    4,920.48/7,381.20 = 1,632.80/x
  3. Step 3: Cross multiply
    4,920.48x = 7,381.20 × 1,632.80
  4. Step 4: Simplify right side
    4,920.48x = 12,052,023.36
  5. Step 5: Solve for x
    x = 12,052,023.36/4,920.48
  6. Step 6: Final answer
    x = 2,449.36

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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.