Home / 6,340.38-8,749.78-3,822.62

Finding the Fourth Proportional to 6,340.38, 8,749.78 and 3,822.62

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Solution

The fourth proportional to 6,340.38, 8,749.78 and 3,822.62 is: 5,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,340.38 : 8,749.78 = 3,822.62 : x
  2. Step 2: Convert to fraction form
    6,340.38/8,749.78 = 3,822.62/x
  3. Step 3: Cross multiply
    6,340.38x = 8,749.78 × 3,822.62
  4. Step 4: Simplify right side
    6,340.38x = 33,447,084.02
  5. Step 5: Solve for x
    x = 33,447,084.02/6,340.38
  6. Step 6: Final answer
    x = 5,275.25

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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.