Home / 3,934.64-5,418.60-3,922.76

Finding the Fourth Proportional to 3,934.64, 5,418.60 and 3,922.76

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Solution

The fourth proportional to 3,934.64, 5,418.60 and 3,922.76 is: 5,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.64 : 5,418.60 = 3,922.76 : x
  2. Step 2: Convert to fraction form
    3,934.64/5,418.60 = 3,922.76/x
  3. Step 3: Cross multiply
    3,934.64x = 5,418.60 × 3,922.76
  4. Step 4: Simplify right side
    3,934.64x = 21,255,867.34
  5. Step 5: Solve for x
    x = 21,255,867.34/3,934.64
  6. Step 6: Final answer
    x = 5,402.24

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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.