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Finding the Fourth Proportional to 4,679.69, 7,019.53 and 2,371.19

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Solution

The fourth proportional to 4,679.69, 7,019.53 and 2,371.19 is: 3,556.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.69 : 7,019.53 = 2,371.19 : x
  2. Step 2: Convert to fraction form
    4,679.69/7,019.53 = 2,371.19/x
  3. Step 3: Cross multiply
    4,679.69x = 7,019.53 × 2,371.19
  4. Step 4: Simplify right side
    4,679.69x = 16,644,639.34
  5. Step 5: Solve for x
    x = 16,644,639.34/4,679.69
  6. Step 6: Final answer
    x = 3,556.78

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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.