Home / 6,117.60-9,170.88-2,219.28

Finding the Fourth Proportional to 6,117.60, 9,170.88 and 2,219.28

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Solution

The fourth proportional to 6,117.60, 9,170.88 and 2,219.28 is: 3,326.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.60 : 9,170.88 = 2,219.28 : x
  2. Step 2: Convert to fraction form
    6,117.60/9,170.88 = 2,219.28/x
  3. Step 3: Cross multiply
    6,117.60x = 9,170.88 × 2,219.28
  4. Step 4: Simplify right side
    6,117.60x = 20,352,750.57
  5. Step 5: Solve for x
    x = 20,352,750.57/6,117.60
  6. Step 6: Final answer
    x = 3,326.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.