Home / 2,080.74-3,122.40-1,531.56

Finding the Fourth Proportional to 2,080.74, 3,122.40 and 1,531.56

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Solution

The fourth proportional to 2,080.74, 3,122.40 and 1,531.56 is: 2,298.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.74 : 3,122.40 = 1,531.56 : x
  2. Step 2: Convert to fraction form
    2,080.74/3,122.40 = 1,531.56/x
  3. Step 3: Cross multiply
    2,080.74x = 3,122.40 × 1,531.56
  4. Step 4: Simplify right side
    2,080.74x = 4,782,142.94
  5. Step 5: Solve for x
    x = 4,782,142.94/2,080.74
  6. Step 6: Final answer
    x = 2,298.29

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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.