Home / 2,253.40-3,377.40-2,021.20

Finding the Fourth Proportional to 2,253.40, 3,377.40 and 2,021.20

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Solution

The fourth proportional to 2,253.40, 3,377.40 and 2,021.20 is: 3,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,253.40 : 3,377.40 = 2,021.20 : x
  2. Step 2: Convert to fraction form
    2,253.40/3,377.40 = 2,021.20/x
  3. Step 3: Cross multiply
    2,253.40x = 3,377.40 × 2,021.20
  4. Step 4: Simplify right side
    2,253.40x = 6,826,400.88
  5. Step 5: Solve for x
    x = 6,826,400.88/2,253.40
  6. Step 6: Final answer
    x = 3,029.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.