Home / 3,922.60-5,905.26-3,386.92

Finding the Fourth Proportional to 3,922.60, 5,905.26 and 3,386.92

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Solution

The fourth proportional to 3,922.60, 5,905.26 and 3,386.92 is: 5,098.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.60 : 5,905.26 = 3,386.92 : x
  2. Step 2: Convert to fraction form
    3,922.60/5,905.26 = 3,386.92/x
  3. Step 3: Cross multiply
    3,922.60x = 5,905.26 × 3,386.92
  4. Step 4: Simplify right side
    3,922.60x = 20,000,643.20
  5. Step 5: Solve for x
    x = 20,000,643.20/3,922.60
  6. Step 6: Final answer
    x = 5,098.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.