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Finding the Fourth Proportional to 3,387.16, 5,080.74 and 1,826.29

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Solution

The fourth proportional to 3,387.16, 5,080.74 and 1,826.29 is: 2,739.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.16 : 5,080.74 = 1,826.29 : x
  2. Step 2: Convert to fraction form
    3,387.16/5,080.74 = 1,826.29/x
  3. Step 3: Cross multiply
    3,387.16x = 5,080.74 × 1,826.29
  4. Step 4: Simplify right side
    3,387.16x = 9,278,904.65
  5. Step 5: Solve for x
    x = 9,278,904.65/3,387.16
  6. Step 6: Final answer
    x = 2,739.44

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1.5x scale

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.