Home / 2,743.81-4,115.75-1,648.49

Finding the Fourth Proportional to 2,743.81, 4,115.75 and 1,648.49

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Solution

The fourth proportional to 2,743.81, 4,115.75 and 1,648.49 is: 2,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,743.81 : 4,115.75 = 1,648.49 : x
  2. Step 2: Convert to fraction form
    2,743.81/4,115.75 = 1,648.49/x
  3. Step 3: Cross multiply
    2,743.81x = 4,115.75 × 1,648.49
  4. Step 4: Simplify right side
    2,743.81x = 6,784,743.90
  5. Step 5: Solve for x
    x = 6,784,743.90/2,743.81
  6. Step 6: Final answer
    x = 2,472.75

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1.5x scale

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.