Home / 1,747.70-2,621.55-1,553.30

Finding the Fourth Proportional to 1,747.70, 2,621.55 and 1,553.30

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Solution

The fourth proportional to 1,747.70, 2,621.55 and 1,553.30 is: 2,329.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.70 : 2,621.55 = 1,553.30 : x
  2. Step 2: Convert to fraction form
    1,747.70/2,621.55 = 1,553.30/x
  3. Step 3: Cross multiply
    1,747.70x = 2,621.55 × 1,553.30
  4. Step 4: Simplify right side
    1,747.70x = 4,072,053.62
  5. Step 5: Solve for x
    x = 4,072,053.62/1,747.70
  6. Step 6: Final answer
    x = 2,329.95

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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.