Home / 2,790.77-3,876.50-2,746.11

Finding the Fourth Proportional to 2,790.77, 3,876.50 and 2,746.11

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Solution

The fourth proportional to 2,790.77, 3,876.50 and 2,746.11 is: 3,814.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.77 : 3,876.50 = 2,746.11 : x
  2. Step 2: Convert to fraction form
    2,790.77/3,876.50 = 2,746.11/x
  3. Step 3: Cross multiply
    2,790.77x = 3,876.50 × 2,746.11
  4. Step 4: Simplify right side
    2,790.77x = 10,645,316.82
  5. Step 5: Solve for x
    x = 10,645,316.82/2,790.77
  6. Step 6: Final answer
    x = 3,814.48

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.