Home / 3,981.12-5,969.35-1,516.11

Finding the Fourth Proportional to 3,981.12, 5,969.35 and 1,516.11

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Solution

The fourth proportional to 3,981.12, 5,969.35 and 1,516.11 is: 2,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.12 : 5,969.35 = 1,516.11 : x
  2. Step 2: Convert to fraction form
    3,981.12/5,969.35 = 1,516.11/x
  3. Step 3: Cross multiply
    3,981.12x = 5,969.35 × 1,516.11
  4. Step 4: Simplify right side
    3,981.12x = 9,050,191.23
  5. Step 5: Solve for x
    x = 9,050,191.23/3,981.12
  6. Step 6: Final answer
    x = 2,273.28

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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.