Home / 5,181.34-7,149.39-2,943.11

Finding the Fourth Proportional to 5,181.34, 7,149.39 and 2,943.11

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Solution

The fourth proportional to 5,181.34, 7,149.39 and 2,943.11 is: 4,061.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.34 : 7,149.39 = 2,943.11 : x
  2. Step 2: Convert to fraction form
    5,181.34/7,149.39 = 2,943.11/x
  3. Step 3: Cross multiply
    5,181.34x = 7,149.39 × 2,943.11
  4. Step 4: Simplify right side
    5,181.34x = 21,041,441.20
  5. Step 5: Solve for x
    x = 21,041,441.20/5,181.34
  6. Step 6: Final answer
    x = 4,061.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.