Home / 3,710.30-5,120.27-2,218.37

Finding the Fourth Proportional to 3,710.30, 5,120.27 and 2,218.37

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Solution

The fourth proportional to 3,710.30, 5,120.27 and 2,218.37 is: 3,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.30 : 5,120.27 = 2,218.37 : x
  2. Step 2: Convert to fraction form
    3,710.30/5,120.27 = 2,218.37/x
  3. Step 3: Cross multiply
    3,710.30x = 5,120.27 × 2,218.37
  4. Step 4: Simplify right side
    3,710.30x = 11,358,616.67
  5. Step 5: Solve for x
    x = 11,358,616.67/3,710.30
  6. Step 6: Final answer
    x = 3,061.38

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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.