Home / 3,971.51-5,480.59-2,458.66

Finding the Fourth Proportional to 3,971.51, 5,480.59 and 2,458.66

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Solution

The fourth proportional to 3,971.51, 5,480.59 and 2,458.66 is: 3,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.51 : 5,480.59 = 2,458.66 : x
  2. Step 2: Convert to fraction form
    3,971.51/5,480.59 = 2,458.66/x
  3. Step 3: Cross multiply
    3,971.51x = 5,480.59 × 2,458.66
  4. Step 4: Simplify right side
    3,971.51x = 13,474,910.95
  5. Step 5: Solve for x
    x = 13,474,910.95/3,971.51
  6. Step 6: Final answer
    x = 3,392.90

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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.