Home / 3,318.60-4,983.60-1,837.20

Finding the Fourth Proportional to 3,318.60, 4,983.60 and 1,837.20

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Solution

The fourth proportional to 3,318.60, 4,983.60 and 1,837.20 is: 2,758.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.60 : 4,983.60 = 1,837.20 : x
  2. Step 2: Convert to fraction form
    3,318.60/4,983.60 = 1,837.20/x
  3. Step 3: Cross multiply
    3,318.60x = 4,983.60 × 1,837.20
  4. Step 4: Simplify right side
    3,318.60x = 9,155,869.92
  5. Step 5: Solve for x
    x = 9,155,869.92/3,318.60
  6. Step 6: Final answer
    x = 2,758.96

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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.