Home / 4,910.91-7,370.22-1,991.27

Finding the Fourth Proportional to 4,910.91, 7,370.22 and 1,991.27

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Solution

The fourth proportional to 4,910.91, 7,370.22 and 1,991.27 is: 2,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.91 : 7,370.22 = 1,991.27 : x
  2. Step 2: Convert to fraction form
    4,910.91/7,370.22 = 1,991.27/x
  3. Step 3: Cross multiply
    4,910.91x = 7,370.22 × 1,991.27
  4. Step 4: Simplify right side
    4,910.91x = 14,676,061.13
  5. Step 5: Solve for x
    x = 14,676,061.13/4,910.91
  6. Step 6: Final answer
    x = 2,988.46

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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.