Home / 3,132.40-4,694.70-2,018.88

Finding the Fourth Proportional to 3,132.40, 4,694.70 and 2,018.88

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Solution

The fourth proportional to 3,132.40, 4,694.70 and 2,018.88 is: 3,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.40 : 4,694.70 = 2,018.88 : x
  2. Step 2: Convert to fraction form
    3,132.40/4,694.70 = 2,018.88/x
  3. Step 3: Cross multiply
    3,132.40x = 4,694.70 × 2,018.88
  4. Step 4: Simplify right side
    3,132.40x = 9,478,035.94
  5. Step 5: Solve for x
    x = 9,478,035.94/3,132.40
  6. Step 6: Final answer
    x = 3,025.81

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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.