Home / 5,122.20-7,069.05-2,969.49

Finding the Fourth Proportional to 5,122.20, 7,069.05 and 2,969.49

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Solution

The fourth proportional to 5,122.20, 7,069.05 and 2,969.49 is: 4,098.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.20 : 7,069.05 = 2,969.49 : x
  2. Step 2: Convert to fraction form
    5,122.20/7,069.05 = 2,969.49/x
  3. Step 3: Cross multiply
    5,122.20x = 7,069.05 × 2,969.49
  4. Step 4: Simplify right side
    5,122.20x = 20,991,473.28
  5. Step 5: Solve for x
    x = 20,991,473.28/5,122.20
  6. Step 6: Final answer
    x = 4,098.14

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1.5x scale

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.