Home / 2,253.88-3,108.64-1,939.68

Finding the Fourth Proportional to 2,253.88, 3,108.64 and 1,939.68

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Solution

The fourth proportional to 2,253.88, 3,108.64 and 1,939.68 is: 2,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.88 : 3,108.64 = 1,939.68 : x
  2. Step 2: Convert to fraction form
    2,253.88/3,108.64 = 1,939.68/x
  3. Step 3: Cross multiply
    2,253.88x = 3,108.64 × 1,939.68
  4. Step 4: Simplify right side
    2,253.88x = 6,029,751.29
  5. Step 5: Solve for x
    x = 6,029,751.29/2,253.88
  6. Step 6: Final answer
    x = 2,675.28

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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.