Home / 4,849.70-6,691.78-2,859.98

Finding the Fourth Proportional to 4,849.70, 6,691.78 and 2,859.98

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Solution

The fourth proportional to 4,849.70, 6,691.78 and 2,859.98 is: 3,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.70 : 6,691.78 = 2,859.98 : x
  2. Step 2: Convert to fraction form
    4,849.70/6,691.78 = 2,859.98/x
  3. Step 3: Cross multiply
    4,849.70x = 6,691.78 × 2,859.98
  4. Step 4: Simplify right side
    4,849.70x = 19,138,356.96
  5. Step 5: Solve for x
    x = 19,138,356.96/4,849.70
  6. Step 6: Final answer
    x = 3,946.30

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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.