Home / 2,135.20-3,206.04-1,360.12

Finding the Fourth Proportional to 2,135.20, 3,206.04 and 1,360.12

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Solution

The fourth proportional to 2,135.20, 3,206.04 and 1,360.12 is: 2,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.20 : 3,206.04 = 1,360.12 : x
  2. Step 2: Convert to fraction form
    2,135.20/3,206.04 = 1,360.12/x
  3. Step 3: Cross multiply
    2,135.20x = 3,206.04 × 1,360.12
  4. Step 4: Simplify right side
    2,135.20x = 4,360,599.12
  5. Step 5: Solve for x
    x = 4,360,599.12/2,135.20
  6. Step 6: Final answer
    x = 2,042.24

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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.