Home / 4,849.80-6,690.78-2,859.66

Finding the Fourth Proportional to 4,849.80, 6,690.78 and 2,859.66

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Solution

The fourth proportional to 4,849.80, 6,690.78 and 2,859.66 is: 3,945.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.80 : 6,690.78 = 2,859.66 : x
  2. Step 2: Convert to fraction form
    4,849.80/6,690.78 = 2,859.66/x
  3. Step 3: Cross multiply
    4,849.80x = 6,690.78 × 2,859.66
  4. Step 4: Simplify right side
    4,849.80x = 19,133,355.93
  5. Step 5: Solve for x
    x = 19,133,355.93/4,849.80
  6. Step 6: Final answer
    x = 3,945.18

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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.