Home / 2,521.12-3,781.80-1,350.64

Finding the Fourth Proportional to 2,521.12, 3,781.80 and 1,350.64

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Solution

The fourth proportional to 2,521.12, 3,781.80 and 1,350.64 is: 2,026.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,521.12 : 3,781.80 = 1,350.64 : x
  2. Step 2: Convert to fraction form
    2,521.12/3,781.80 = 1,350.64/x
  3. Step 3: Cross multiply
    2,521.12x = 3,781.80 × 1,350.64
  4. Step 4: Simplify right side
    2,521.12x = 5,107,850.35
  5. Step 5: Solve for x
    x = 5,107,850.35/2,521.12
  6. Step 6: Final answer
    x = 2,026.02

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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.