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Finding the Fourth Proportional to 3,321.16, 4,983.58 and 2,798.72

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Solution

The fourth proportional to 3,321.16, 4,983.58 and 2,798.72 is: 4,199.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.16 : 4,983.58 = 2,798.72 : x
  2. Step 2: Convert to fraction form
    3,321.16/4,983.58 = 2,798.72/x
  3. Step 3: Cross multiply
    3,321.16x = 4,983.58 × 2,798.72
  4. Step 4: Simplify right side
    3,321.16x = 13,947,645.02
  5. Step 5: Solve for x
    x = 13,947,645.02/3,321.16
  6. Step 6: Final answer
    x = 4,199.63

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Similar ratio
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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.