Home / 3,749.30-5,175.04-2,156.12

Finding the Fourth Proportional to 3,749.30, 5,175.04 and 2,156.12

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Solution

The fourth proportional to 3,749.30, 5,175.04 and 2,156.12 is: 2,976.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.30 : 5,175.04 = 2,156.12 : x
  2. Step 2: Convert to fraction form
    3,749.30/5,175.04 = 2,156.12/x
  3. Step 3: Cross multiply
    3,749.30x = 5,175.04 × 2,156.12
  4. Step 4: Simplify right side
    3,749.30x = 11,158,010.75
  5. Step 5: Solve for x
    x = 11,158,010.75/3,749.30
  6. Step 6: Final answer
    x = 2,976.02

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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.