Home / 5,219.19-7,826.27-1,520.42

Finding the Fourth Proportional to 5,219.19, 7,826.27 and 1,520.42

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Solution

The fourth proportional to 5,219.19, 7,826.27 and 1,520.42 is: 2,279.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.19 : 7,826.27 = 1,520.42 : x
  2. Step 2: Convert to fraction form
    5,219.19/7,826.27 = 1,520.42/x
  3. Step 3: Cross multiply
    5,219.19x = 7,826.27 × 1,520.42
  4. Step 4: Simplify right side
    5,219.19x = 11,899,170.70
  5. Step 5: Solve for x
    x = 11,899,170.70/5,219.19
  6. Step 6: Final answer
    x = 2,279.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.