Home / 6,919.30-10,353.36-4,147.90

Finding the Fourth Proportional to 6,919.30, 10,353.36 and 4,147.90

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Solution

The fourth proportional to 6,919.30, 10,353.36 and 4,147.90 is: 6,206.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,919.30 : 10,353.36 = 4,147.90 : x
  2. Step 2: Convert to fraction form
    6,919.30/10,353.36 = 4,147.90/x
  3. Step 3: Cross multiply
    6,919.30x = 10,353.36 × 4,147.90
  4. Step 4: Simplify right side
    6,919.30x = 42,944,701.94
  5. Step 5: Solve for x
    x = 42,944,701.94/6,919.30
  6. Step 6: Final answer
    x = 6,206.51

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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.