Home / 2,769.49-4,147.39-2,148.02

Finding the Fourth Proportional to 2,769.49, 4,147.39 and 2,148.02

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Solution

The fourth proportional to 2,769.49, 4,147.39 and 2,148.02 is: 3,216.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.49 : 4,147.39 = 2,148.02 : x
  2. Step 2: Convert to fraction form
    2,769.49/4,147.39 = 2,148.02/x
  3. Step 3: Cross multiply
    2,769.49x = 4,147.39 × 2,148.02
  4. Step 4: Simplify right side
    2,769.49x = 8,908,655.93
  5. Step 5: Solve for x
    x = 8,908,655.93/2,769.49
  6. Step 6: Final answer
    x = 3,216.72

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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.