Home / 3,854.84-5,319.65-2,176.79

Finding the Fourth Proportional to 3,854.84, 5,319.65 and 2,176.79

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Solution

The fourth proportional to 3,854.84, 5,319.65 and 2,176.79 is: 3,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.84 : 5,319.65 = 2,176.79 : x
  2. Step 2: Convert to fraction form
    3,854.84/5,319.65 = 2,176.79/x
  3. Step 3: Cross multiply
    3,854.84x = 5,319.65 × 2,176.79
  4. Step 4: Simplify right side
    3,854.84x = 11,579,760.92
  5. Step 5: Solve for x
    x = 11,579,760.92/3,854.84
  6. Step 6: Final answer
    x = 3,003.95

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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.