Home / 4,143.30-5,715.15-2,571.39

Finding the Fourth Proportional to 4,143.30, 5,715.15 and 2,571.39

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Solution

The fourth proportional to 4,143.30, 5,715.15 and 2,571.39 is: 3,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.30 : 5,715.15 = 2,571.39 : x
  2. Step 2: Convert to fraction form
    4,143.30/5,715.15 = 2,571.39/x
  3. Step 3: Cross multiply
    4,143.30x = 5,715.15 × 2,571.39
  4. Step 4: Simplify right side
    4,143.30x = 14,695,879.56
  5. Step 5: Solve for x
    x = 14,695,879.56/4,143.30
  6. Step 6: Final answer
    x = 3,546.90

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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.