Home / 2,738.18-3,774.48-2,147.69

Finding the Fourth Proportional to 2,738.18, 3,774.48 and 2,147.69

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Solution

The fourth proportional to 2,738.18, 3,774.48 and 2,147.69 is: 2,960.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738.18 : 3,774.48 = 2,147.69 : x
  2. Step 2: Convert to fraction form
    2,738.18/3,774.48 = 2,147.69/x
  3. Step 3: Cross multiply
    2,738.18x = 3,774.48 × 2,147.69
  4. Step 4: Simplify right side
    2,738.18x = 8,106,394.08
  5. Step 5: Solve for x
    x = 8,106,394.08/2,738.18
  6. Step 6: Final answer
    x = 2,960.51

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1.5x scale

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.