Home / 3,854.39-5,319.30-2,175.19

Finding the Fourth Proportional to 3,854.39, 5,319.30 and 2,175.19

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Solution

The fourth proportional to 3,854.39, 5,319.30 and 2,175.19 is: 3,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.39 : 5,319.30 = 2,175.19 : x
  2. Step 2: Convert to fraction form
    3,854.39/5,319.30 = 2,175.19/x
  3. Step 3: Cross multiply
    3,854.39x = 5,319.30 × 2,175.19
  4. Step 4: Simplify right side
    3,854.39x = 11,570,450.69
  5. Step 5: Solve for x
    x = 11,570,450.69/3,854.39
  6. Step 6: Final answer
    x = 3,001.89

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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.