Home / 5,273.29-7,910.48-1,989.15

Finding the Fourth Proportional to 5,273.29, 7,910.48 and 1,989.15

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Solution

The fourth proportional to 5,273.29, 7,910.48 and 1,989.15 is: 2,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,273.29 : 7,910.48 = 1,989.15 : x
  2. Step 2: Convert to fraction form
    5,273.29/7,910.48 = 1,989.15/x
  3. Step 3: Cross multiply
    5,273.29x = 7,910.48 × 1,989.15
  4. Step 4: Simplify right side
    5,273.29x = 15,735,081.79
  5. Step 5: Solve for x
    x = 15,735,081.79/5,273.29
  6. Step 6: Final answer
    x = 2,983.92

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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.