Home / 4,890.70-7,330.65-2,549.80

Finding the Fourth Proportional to 4,890.70, 7,330.65 and 2,549.80

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Solution

The fourth proportional to 4,890.70, 7,330.65 and 2,549.80 is: 3,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.70 : 7,330.65 = 2,549.80 : x
  2. Step 2: Convert to fraction form
    4,890.70/7,330.65 = 2,549.80/x
  3. Step 3: Cross multiply
    4,890.70x = 7,330.65 × 2,549.80
  4. Step 4: Simplify right side
    4,890.70x = 18,691,691.37
  5. Step 5: Solve for x
    x = 18,691,691.37/4,890.70
  6. Step 6: Final answer
    x = 3,821.88

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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.