Home / 3,942.15-5,440.95-2,264.70

Finding the Fourth Proportional to 3,942.15, 5,440.95 and 2,264.70

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Solution

The fourth proportional to 3,942.15, 5,440.95 and 2,264.70 is: 3,125.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.15 : 5,440.95 = 2,264.70 : x
  2. Step 2: Convert to fraction form
    3,942.15/5,440.95 = 2,264.70/x
  3. Step 3: Cross multiply
    3,942.15x = 5,440.95 × 2,264.70
  4. Step 4: Simplify right side
    3,942.15x = 12,322,139.87
  5. Step 5: Solve for x
    x = 12,322,139.87/3,942.15
  6. Step 6: Final answer
    x = 3,125.74

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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.