Home / 6,868.75-9,478.88-3,724.95

Finding the Fourth Proportional to 6,868.75, 9,478.88 and 3,724.95

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Solution

The fourth proportional to 6,868.75, 9,478.88 and 3,724.95 is: 5,140.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,868.75 : 9,478.88 = 3,724.95 : x
  2. Step 2: Convert to fraction form
    6,868.75/9,478.88 = 3,724.95/x
  3. Step 3: Cross multiply
    6,868.75x = 9,478.88 × 3,724.95
  4. Step 4: Simplify right side
    6,868.75x = 35,308,354.06
  5. Step 5: Solve for x
    x = 35,308,354.06/6,868.75
  6. Step 6: Final answer
    x = 5,140.43

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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.