Home / 3,942.07-5,440.34-2,263.75

Finding the Fourth Proportional to 3,942.07, 5,440.34 and 2,263.75

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Solution

The fourth proportional to 3,942.07, 5,440.34 and 2,263.75 is: 3,124.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,942.07 : 5,440.34 = 2,263.75 : x
  2. Step 2: Convert to fraction form
    3,942.07/5,440.34 = 2,263.75/x
  3. Step 3: Cross multiply
    3,942.07x = 5,440.34 × 2,263.75
  4. Step 4: Simplify right side
    3,942.07x = 12,315,569.68
  5. Step 5: Solve for x
    x = 12,315,569.68/3,942.07
  6. Step 6: Final answer
    x = 3,124.14

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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.