Home / 1,844.20-2,543.25-1,215.22

Finding the Fourth Proportional to 1,844.20, 2,543.25 and 1,215.22

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Solution

The fourth proportional to 1,844.20, 2,543.25 and 1,215.22 is: 1,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.20 : 2,543.25 = 1,215.22 : x
  2. Step 2: Convert to fraction form
    1,844.20/2,543.25 = 1,215.22/x
  3. Step 3: Cross multiply
    1,844.20x = 2,543.25 × 1,215.22
  4. Step 4: Simplify right side
    1,844.20x = 3,090,608.27
  5. Step 5: Solve for x
    x = 3,090,608.27/1,844.20
  6. Step 6: Final answer
    x = 1,675.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.