Home / 3,749.80-5,175.73-2,156.63

Finding the Fourth Proportional to 3,749.80, 5,175.73 and 2,156.63

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Solution

The fourth proportional to 3,749.80, 5,175.73 and 2,156.63 is: 2,976.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,749.80 : 5,175.73 = 2,156.63 : x
  2. Step 2: Convert to fraction form
    3,749.80/5,175.73 = 2,156.63/x
  3. Step 3: Cross multiply
    3,749.80x = 5,175.73 × 2,156.63
  4. Step 4: Simplify right side
    3,749.80x = 11,162,097.93
  5. Step 5: Solve for x
    x = 11,162,097.93/3,749.80
  6. Step 6: Final answer
    x = 2,976.72

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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.