Home / 2,080.14-3,122.37-847.50

Finding the Fourth Proportional to 2,080.14, 3,122.37 and 847.50

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Solution

The fourth proportional to 2,080.14, 3,122.37 and 847.50 is: 1,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.14 : 3,122.37 = 847.50 : x
  2. Step 2: Convert to fraction form
    2,080.14/3,122.37 = 847.50/x
  3. Step 3: Cross multiply
    2,080.14x = 3,122.37 × 847.50
  4. Step 4: Simplify right side
    2,080.14x = 2,646,208.58
  5. Step 5: Solve for x
    x = 2,646,208.58/2,080.14
  6. Step 6: Final answer
    x = 1,272.13

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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.