Home / 3,356.20-5,033.10-1,275.65

Finding the Fourth Proportional to 3,356.20, 5,033.10 and 1,275.65

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Solution

The fourth proportional to 3,356.20, 5,033.10 and 1,275.65 is: 1,913.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,356.20 : 5,033.10 = 1,275.65 : x
  2. Step 2: Convert to fraction form
    3,356.20/5,033.10 = 1,275.65/x
  3. Step 3: Cross multiply
    3,356.20x = 5,033.10 × 1,275.65
  4. Step 4: Simplify right side
    3,356.20x = 6,420,486.66
  5. Step 5: Solve for x
    x = 6,420,486.66/3,356.20
  6. Step 6: Final answer
    x = 1,913.02

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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.