Home / 3,625.09-5,437.92-1,981.30

Finding the Fourth Proportional to 3,625.09, 5,437.92 and 1,981.30

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Solution

The fourth proportional to 3,625.09, 5,437.92 and 1,981.30 is: 2,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,625.09 : 5,437.92 = 1,981.30 : x
  2. Step 2: Convert to fraction form
    3,625.09/5,437.92 = 1,981.30/x
  3. Step 3: Cross multiply
    3,625.09x = 5,437.92 × 1,981.30
  4. Step 4: Simplify right side
    3,625.09x = 10,774,150.90
  5. Step 5: Solve for x
    x = 10,774,150.90/3,625.09
  6. Step 6: Final answer
    x = 2,972.11

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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.