Home / 3,710.26-5,120.73-2,116.91

Finding the Fourth Proportional to 3,710.26, 5,120.73 and 2,116.91

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Solution

The fourth proportional to 3,710.26, 5,120.73 and 2,116.91 is: 2,921.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.26 : 5,120.73 = 2,116.91 : x
  2. Step 2: Convert to fraction form
    3,710.26/5,120.73 = 2,116.91/x
  3. Step 3: Cross multiply
    3,710.26x = 5,120.73 × 2,116.91
  4. Step 4: Simplify right side
    3,710.26x = 10,840,124.54
  5. Step 5: Solve for x
    x = 10,840,124.54/3,710.26
  6. Step 6: Final answer
    x = 2,921.66

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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.