Home / 2,727.18-3,761.91-1,678.50

Finding the Fourth Proportional to 2,727.18, 3,761.91 and 1,678.50

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Solution

The fourth proportional to 2,727.18, 3,761.91 and 1,678.50 is: 2,315.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.18 : 3,761.91 = 1,678.50 : x
  2. Step 2: Convert to fraction form
    2,727.18/3,761.91 = 1,678.50/x
  3. Step 3: Cross multiply
    2,727.18x = 3,761.91 × 1,678.50
  4. Step 4: Simplify right side
    2,727.18x = 6,314,365.94
  5. Step 5: Solve for x
    x = 6,314,365.94/2,727.18
  6. Step 6: Final answer
    x = 2,315.35

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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.