Home / 3,710.90-5,119.19-2,218.43

Finding the Fourth Proportional to 3,710.90, 5,119.19 and 2,218.43

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Solution

The fourth proportional to 3,710.90, 5,119.19 and 2,218.43 is: 3,060.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.90 : 5,119.19 = 2,218.43 : x
  2. Step 2: Convert to fraction form
    3,710.90/5,119.19 = 2,218.43/x
  3. Step 3: Cross multiply
    3,710.90x = 5,119.19 × 2,218.43
  4. Step 4: Simplify right side
    3,710.90x = 11,356,527.98
  5. Step 5: Solve for x
    x = 11,356,527.98/3,710.90
  6. Step 6: Final answer
    x = 3,060.31

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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.