Home / 3,859.28-5,323.85-2,440.58

Finding the Fourth Proportional to 3,859.28, 5,323.85 and 2,440.58

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Solution

The fourth proportional to 3,859.28, 5,323.85 and 2,440.58 is: 3,366.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.28 : 5,323.85 = 2,440.58 : x
  2. Step 2: Convert to fraction form
    3,859.28/5,323.85 = 2,440.58/x
  3. Step 3: Cross multiply
    3,859.28x = 5,323.85 × 2,440.58
  4. Step 4: Simplify right side
    3,859.28x = 12,993,287.93
  5. Step 5: Solve for x
    x = 12,993,287.93/3,859.28
  6. Step 6: Final answer
    x = 3,366.76

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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.