Home / 3,387.15-5,080.82-1,047.06

Finding the Fourth Proportional to 3,387.15, 5,080.82 and 1,047.06

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Solution

The fourth proportional to 3,387.15, 5,080.82 and 1,047.06 is: 1,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,387.15 : 5,080.82 = 1,047.06 : x
  2. Step 2: Convert to fraction form
    3,387.15/5,080.82 = 1,047.06/x
  3. Step 3: Cross multiply
    3,387.15x = 5,080.82 × 1,047.06
  4. Step 4: Simplify right side
    3,387.15x = 5,319,918.15
  5. Step 5: Solve for x
    x = 5,319,918.15/3,387.15
  6. Step 6: Final answer
    x = 1,570.62

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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.