Home / 2,193.88-3,029.30-1,355.80

Finding the Fourth Proportional to 2,193.88, 3,029.30 and 1,355.80

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Solution

The fourth proportional to 2,193.88, 3,029.30 and 1,355.80 is: 1,872.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.88 : 3,029.30 = 1,355.80 : x
  2. Step 2: Convert to fraction form
    2,193.88/3,029.30 = 1,355.80/x
  3. Step 3: Cross multiply
    2,193.88x = 3,029.30 × 1,355.80
  4. Step 4: Simplify right side
    2,193.88x = 4,107,124.94
  5. Step 5: Solve for x
    x = 4,107,124.94/2,193.88
  6. Step 6: Final answer
    x = 1,872.08

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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.