Home / 3,854.12-5,318.66-2,175.50

Finding the Fourth Proportional to 3,854.12, 5,318.66 and 2,175.50

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Solution

The fourth proportional to 3,854.12, 5,318.66 and 2,175.50 is: 3,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.12 : 5,318.66 = 2,175.50 : x
  2. Step 2: Convert to fraction form
    3,854.12/5,318.66 = 2,175.50/x
  3. Step 3: Cross multiply
    3,854.12x = 5,318.66 × 2,175.50
  4. Step 4: Simplify right side
    3,854.12x = 11,570,763.57
  5. Step 5: Solve for x
    x = 11,570,763.57/3,854.12
  6. Step 6: Final answer
    x = 3,002.18

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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.