Home / 6,868.30-9,478.26-3,724.49

Finding the Fourth Proportional to 6,868.30, 9,478.26 and 3,724.49

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Solution

The fourth proportional to 6,868.30, 9,478.26 and 3,724.49 is: 5,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.30 : 9,478.26 = 3,724.49 : x
  2. Step 2: Convert to fraction form
    6,868.30/9,478.26 = 3,724.49/x
  3. Step 3: Cross multiply
    6,868.30x = 9,478.26 × 3,724.49
  4. Step 4: Simplify right side
    6,868.30x = 35,301,692.10
  5. Step 5: Solve for x
    x = 35,301,692.10/6,868.30
  6. Step 6: Final answer
    x = 5,139.80

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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.