Home / 2,095.36-3,138.24-1,230.40

Finding the Fourth Proportional to 2,095.36, 3,138.24 and 1,230.40

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Solution

The fourth proportional to 2,095.36, 3,138.24 and 1,230.40 is: 1,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.36 : 3,138.24 = 1,230.40 : x
  2. Step 2: Convert to fraction form
    2,095.36/3,138.24 = 1,230.40/x
  3. Step 3: Cross multiply
    2,095.36x = 3,138.24 × 1,230.40
  4. Step 4: Simplify right side
    2,095.36x = 3,861,290.50
  5. Step 5: Solve for x
    x = 3,861,290.50/2,095.36
  6. Step 6: Final answer
    x = 1,842.78

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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.