Home / 4,849.72-6,701.80-4,131.78

Finding the Fourth Proportional to 4,849.72, 6,701.80 and 4,131.78

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Solution

The fourth proportional to 4,849.72, 6,701.80 and 4,131.78 is: 5,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.72 : 6,701.80 = 4,131.78 : x
  2. Step 2: Convert to fraction form
    4,849.72/6,701.80 = 4,131.78/x
  3. Step 3: Cross multiply
    4,849.72x = 6,701.80 × 4,131.78
  4. Step 4: Simplify right side
    4,849.72x = 27,690,363.20
  5. Step 5: Solve for x
    x = 27,690,363.20/4,849.72
  6. Step 6: Final answer
    x = 5,709.68

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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.