Home / 5,015.70-6,919.38-3,247.89

Finding the Fourth Proportional to 5,015.70, 6,919.38 and 3,247.89

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Solution

The fourth proportional to 5,015.70, 6,919.38 and 3,247.89 is: 4,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,015.70 : 6,919.38 = 3,247.89 : x
  2. Step 2: Convert to fraction form
    5,015.70/6,919.38 = 3,247.89/x
  3. Step 3: Cross multiply
    5,015.70x = 6,919.38 × 3,247.89
  4. Step 4: Simplify right side
    5,015.70x = 22,473,385.11
  5. Step 5: Solve for x
    x = 22,473,385.11/5,015.70
  6. Step 6: Final answer
    x = 4,480.61

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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.