Home / 2,730.18-3,769.66-2,139.68

Finding the Fourth Proportional to 2,730.18, 3,769.66 and 2,139.68

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Solution

The fourth proportional to 2,730.18, 3,769.66 and 2,139.68 is: 2,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.18 : 3,769.66 = 2,139.68 : x
  2. Step 2: Convert to fraction form
    2,730.18/3,769.66 = 2,139.68/x
  3. Step 3: Cross multiply
    2,730.18x = 3,769.66 × 2,139.68
  4. Step 4: Simplify right side
    2,730.18x = 8,065,866.11
  5. Step 5: Solve for x
    x = 8,065,866.11/2,730.18
  6. Step 6: Final answer
    x = 2,954.33

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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.