Home / 3,955.89-5,452.84-3,115.26

Finding the Fourth Proportional to 3,955.89, 5,452.84 and 3,115.26

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Solution

The fourth proportional to 3,955.89, 5,452.84 and 3,115.26 is: 4,294.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.89 : 5,452.84 = 3,115.26 : x
  2. Step 2: Convert to fraction form
    3,955.89/5,452.84 = 3,115.26/x
  3. Step 3: Cross multiply
    3,955.89x = 5,452.84 × 3,115.26
  4. Step 4: Simplify right side
    3,955.89x = 16,987,014.34
  5. Step 5: Solve for x
    x = 16,987,014.34/3,955.89
  6. Step 6: Final answer
    x = 4,294.11

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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.