Home / 3,710.16-5,120.10-2,217.79

Finding the Fourth Proportional to 3,710.16, 5,120.10 and 2,217.79

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Solution

The fourth proportional to 3,710.16, 5,120.10 and 2,217.79 is: 3,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,710.16 : 5,120.10 = 2,217.79 : x
  2. Step 2: Convert to fraction form
    3,710.16/5,120.10 = 2,217.79/x
  3. Step 3: Cross multiply
    3,710.16x = 5,120.10 × 2,217.79
  4. Step 4: Simplify right side
    3,710.16x = 11,355,306.58
  5. Step 5: Solve for x
    x = 11,355,306.58/3,710.16
  6. Step 6: Final answer
    x = 3,060.60

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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.