Home / 2,747.68-3,788.88-2,047.84

Finding the Fourth Proportional to 2,747.68, 3,788.88 and 2,047.84

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Solution

The fourth proportional to 2,747.68, 3,788.88 and 2,047.84 is: 2,823.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.68 : 3,788.88 = 2,047.84 : x
  2. Step 2: Convert to fraction form
    2,747.68/3,788.88 = 2,047.84/x
  3. Step 3: Cross multiply
    2,747.68x = 3,788.88 × 2,047.84
  4. Step 4: Simplify right side
    2,747.68x = 7,759,020.02
  5. Step 5: Solve for x
    x = 7,759,020.02/2,747.68
  6. Step 6: Final answer
    x = 2,823.84

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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.