Home / 3,517.20-4,853.64-1,945.20

Finding the Fourth Proportional to 3,517.20, 4,853.64 and 1,945.20

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Solution

The fourth proportional to 3,517.20, 4,853.64 and 1,945.20 is: 2,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517.20 : 4,853.64 = 1,945.20 : x
  2. Step 2: Convert to fraction form
    3,517.20/4,853.64 = 1,945.20/x
  3. Step 3: Cross multiply
    3,517.20x = 4,853.64 × 1,945.20
  4. Step 4: Simplify right side
    3,517.20x = 9,441,300.53
  5. Step 5: Solve for x
    x = 9,441,300.53/3,517.20
  6. Step 6: Final answer
    x = 2,684.32

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Double scale
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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.