Home / 3,854.97-5,319.90-2,176.40

Finding the Fourth Proportional to 3,854.97, 5,319.90 and 2,176.40

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Solution

The fourth proportional to 3,854.97, 5,319.90 and 2,176.40 is: 3,003.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.97 : 5,319.90 = 2,176.40 : x
  2. Step 2: Convert to fraction form
    3,854.97/5,319.90 = 2,176.40/x
  3. Step 3: Cross multiply
    3,854.97x = 5,319.90 × 2,176.40
  4. Step 4: Simplify right side
    3,854.97x = 11,578,243.66
  5. Step 5: Solve for x
    x = 11,578,243.66/3,854.97
  6. Step 6: Final answer
    x = 3,003.46

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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.