Home / 3,117.12-4,297.20-2,232.60

Finding the Fourth Proportional to 3,117.12, 4,297.20 and 2,232.60

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Solution

The fourth proportional to 3,117.12, 4,297.20 and 2,232.60 is: 3,077.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.12 : 4,297.20 = 2,232.60 : x
  2. Step 2: Convert to fraction form
    3,117.12/4,297.20 = 2,232.60/x
  3. Step 3: Cross multiply
    3,117.12x = 4,297.20 × 2,232.60
  4. Step 4: Simplify right side
    3,117.12x = 9,593,928.72
  5. Step 5: Solve for x
    x = 9,593,928.72/3,117.12
  6. Step 6: Final answer
    x = 3,077.82

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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.