Home / 3,150.81-4,349.57-2,311.61

Finding the Fourth Proportional to 3,150.81, 4,349.57 and 2,311.61

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Solution

The fourth proportional to 3,150.81, 4,349.57 and 2,311.61 is: 3,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,150.81 : 4,349.57 = 2,311.61 : x
  2. Step 2: Convert to fraction form
    3,150.81/4,349.57 = 2,311.61/x
  3. Step 3: Cross multiply
    3,150.81x = 4,349.57 × 2,311.61
  4. Step 4: Simplify right side
    3,150.81x = 10,054,476.20
  5. Step 5: Solve for x
    x = 10,054,476.20/3,150.81
  6. Step 6: Final answer
    x = 3,191.08

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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.