Home / 4,920.72-7,381.96-1,634.02

Finding the Fourth Proportional to 4,920.72, 7,381.96 and 1,634.02

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Solution

The fourth proportional to 4,920.72, 7,381.96 and 1,634.02 is: 2,451.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,920.72 : 7,381.96 = 1,634.02 : x
  2. Step 2: Convert to fraction form
    4,920.72/7,381.96 = 1,634.02/x
  3. Step 3: Cross multiply
    4,920.72x = 7,381.96 × 1,634.02
  4. Step 4: Simplify right side
    4,920.72x = 12,062,270.28
  5. Step 5: Solve for x
    x = 12,062,270.28/4,920.72
  6. Step 6: Final answer
    x = 2,451.32

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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.