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Finding the Fourth Proportional to 2,993.79, 4,505.63 and 2,257.20

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Solution

The fourth proportional to 2,993.79, 4,505.63 and 2,257.20 is: 3,397.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.79 : 4,505.63 = 2,257.20 : x
  2. Step 2: Convert to fraction form
    2,993.79/4,505.63 = 2,257.20/x
  3. Step 3: Cross multiply
    2,993.79x = 4,505.63 × 2,257.20
  4. Step 4: Simplify right side
    2,993.79x = 10,170,096.75
  5. Step 5: Solve for x
    x = 10,170,096.75/2,993.79
  6. Step 6: Final answer
    x = 3,397.06

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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.