Home / 2,193.30-3,289.95-1,780.47

Finding the Fourth Proportional to 2,193.30, 3,289.95 and 1,780.47

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Solution

The fourth proportional to 2,193.30, 3,289.95 and 1,780.47 is: 2,670.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.30 : 3,289.95 = 1,780.47 : x
  2. Step 2: Convert to fraction form
    2,193.30/3,289.95 = 1,780.47/x
  3. Step 3: Cross multiply
    2,193.30x = 3,289.95 × 1,780.47
  4. Step 4: Simplify right side
    2,193.30x = 5,857,657.28
  5. Step 5: Solve for x
    x = 5,857,657.28/2,193.30
  6. Step 6: Final answer
    x = 2,670.71

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Similar ratio
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1.5x scale

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.