Home / 7,063.70-9,746.84-3,919.90

Finding the Fourth Proportional to 7,063.70, 9,746.84 and 3,919.90

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Solution

The fourth proportional to 7,063.70, 9,746.84 and 3,919.90 is: 5,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.70 : 9,746.84 = 3,919.90 : x
  2. Step 2: Convert to fraction form
    7,063.70/9,746.84 = 3,919.90/x
  3. Step 3: Cross multiply
    7,063.70x = 9,746.84 × 3,919.90
  4. Step 4: Simplify right side
    7,063.70x = 38,206,638.12
  5. Step 5: Solve for x
    x = 38,206,638.12/7,063.70
  6. Step 6: Final answer
    x = 5,408.87

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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.