Home / 3,993.96-5,512.35-2,315.10

Finding the Fourth Proportional to 3,993.96, 5,512.35 and 2,315.10

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Solution

The fourth proportional to 3,993.96, 5,512.35 and 2,315.10 is: 3,195.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.96 : 5,512.35 = 2,315.10 : x
  2. Step 2: Convert to fraction form
    3,993.96/5,512.35 = 2,315.10/x
  3. Step 3: Cross multiply
    3,993.96x = 5,512.35 × 2,315.10
  4. Step 4: Simplify right side
    3,993.96x = 12,761,641.49
  5. Step 5: Solve for x
    x = 12,761,641.49/3,993.96
  6. Step 6: Final answer
    x = 3,195.24

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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.