Home / 2,219.09-3,062.30-1,274.92

Finding the Fourth Proportional to 2,219.09, 3,062.30 and 1,274.92

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Solution

The fourth proportional to 2,219.09, 3,062.30 and 1,274.92 is: 1,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219.09 : 3,062.30 = 1,274.92 : x
  2. Step 2: Convert to fraction form
    2,219.09/3,062.30 = 1,274.92/x
  3. Step 3: Cross multiply
    2,219.09x = 3,062.30 × 1,274.92
  4. Step 4: Simplify right side
    2,219.09x = 3,904,173.49
  5. Step 5: Solve for x
    x = 3,904,173.49/2,219.09
  6. Step 6: Final answer
    x = 1,759.36

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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.