Home / 2,253.80-3,108.30-2,122.58

Finding the Fourth Proportional to 2,253.80, 3,108.30 and 2,122.58

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Solution

The fourth proportional to 2,253.80, 3,108.30 and 2,122.58 is: 2,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.80 : 3,108.30 = 2,122.58 : x
  2. Step 2: Convert to fraction form
    2,253.80/3,108.30 = 2,122.58/x
  3. Step 3: Cross multiply
    2,253.80x = 3,108.30 × 2,122.58
  4. Step 4: Simplify right side
    2,253.80x = 6,597,615.41
  5. Step 5: Solve for x
    x = 6,597,615.41/2,253.80
  6. Step 6: Final answer
    x = 2,927.33

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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.