Home / 2,219.58-3,062.97-1,275.37

Finding the Fourth Proportional to 2,219.58, 3,062.97 and 1,275.37

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Solution

The fourth proportional to 2,219.58, 3,062.97 and 1,275.37 is: 1,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.58 : 3,062.97 = 1,275.37 : x
  2. Step 2: Convert to fraction form
    2,219.58/3,062.97 = 1,275.37/x
  3. Step 3: Cross multiply
    2,219.58x = 3,062.97 × 1,275.37
  4. Step 4: Simplify right side
    2,219.58x = 3,906,420.05
  5. Step 5: Solve for x
    x = 3,906,420.05/2,219.58
  6. Step 6: Final answer
    x = 1,759.98

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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.