Home / 4,742.70-7,110-2,399.78

Finding the Fourth Proportional to 4,742.70, 7,110 and 2,399.78

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Solution

The fourth proportional to 4,742.70, 7,110 and 2,399.78 is: 3,597.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,742.70 : 7,110 = 2,399.78 : x
  2. Step 2: Convert to fraction form
    4,742.70/7,110 = 2,399.78/x
  3. Step 3: Cross multiply
    4,742.70x = 7,110 × 2,399.78
  4. Step 4: Simplify right side
    4,742.70x = 17,062,435.80
  5. Step 5: Solve for x
    x = 17,062,435.80/4,742.70
  6. Step 6: Final answer
    x = 3,597.62

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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.