Home / 3,151.06-4,338.55-2,859.46

Finding the Fourth Proportional to 3,151.06, 4,338.55 and 2,859.46

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Solution

The fourth proportional to 3,151.06, 4,338.55 and 2,859.46 is: 3,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.06 : 4,338.55 = 2,859.46 : x
  2. Step 2: Convert to fraction form
    3,151.06/4,338.55 = 2,859.46/x
  3. Step 3: Cross multiply
    3,151.06x = 4,338.55 × 2,859.46
  4. Step 4: Simplify right side
    3,151.06x = 12,405,910.18
  5. Step 5: Solve for x
    x = 12,405,910.18/3,151.06
  6. Step 6: Final answer
    x = 3,937.06

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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.