Home / 3,953.17-5,455.32-2,274.55

Finding the Fourth Proportional to 3,953.17, 5,455.32 and 2,274.55

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Solution

The fourth proportional to 3,953.17, 5,455.32 and 2,274.55 is: 3,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.17 : 5,455.32 = 2,274.55 : x
  2. Step 2: Convert to fraction form
    3,953.17/5,455.32 = 2,274.55/x
  3. Step 3: Cross multiply
    3,953.17x = 5,455.32 × 2,274.55
  4. Step 4: Simplify right side
    3,953.17x = 12,408,398.11
  5. Step 5: Solve for x
    x = 12,408,398.11/3,953.17
  6. Step 6: Final answer
    x = 3,138.85

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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.