Home / 2,910.80-4,017.24-1,731.86

Finding the Fourth Proportional to 2,910.80, 4,017.24 and 1,731.86

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Solution

The fourth proportional to 2,910.80, 4,017.24 and 1,731.86 is: 2,390.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,910.80 : 4,017.24 = 1,731.86 : x
  2. Step 2: Convert to fraction form
    2,910.80/4,017.24 = 1,731.86/x
  3. Step 3: Cross multiply
    2,910.80x = 4,017.24 × 1,731.86
  4. Step 4: Simplify right side
    2,910.80x = 6,957,297.27
  5. Step 5: Solve for x
    x = 6,957,297.27/2,910.80
  6. Step 6: Final answer
    x = 2,390.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.