Home / 2,761.80-4,149.34-1,776.50

Finding the Fourth Proportional to 2,761.80, 4,149.34 and 1,776.50

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Solution

The fourth proportional to 2,761.80, 4,149.34 and 1,776.50 is: 2,669.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.80 : 4,149.34 = 1,776.50 : x
  2. Step 2: Convert to fraction form
    2,761.80/4,149.34 = 1,776.50/x
  3. Step 3: Cross multiply
    2,761.80x = 4,149.34 × 1,776.50
  4. Step 4: Simplify right side
    2,761.80x = 7,371,302.51
  5. Step 5: Solve for x
    x = 7,371,302.51/2,761.80
  6. Step 6: Final answer
    x = 2,669.02

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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.