Home / 3,971.13-5,475.95-2,958.29

Finding the Fourth Proportional to 3,971.13, 5,475.95 and 2,958.29

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Solution

The fourth proportional to 3,971.13, 5,475.95 and 2,958.29 is: 4,079.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.13 : 5,475.95 = 2,958.29 : x
  2. Step 2: Convert to fraction form
    3,971.13/5,475.95 = 2,958.29/x
  3. Step 3: Cross multiply
    3,971.13x = 5,475.95 × 2,958.29
  4. Step 4: Simplify right side
    3,971.13x = 16,199,405.95
  5. Step 5: Solve for x
    x = 16,199,405.95/3,971.13
  6. Step 6: Final answer
    x = 4,079.29

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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.