Home / 2,788.28-3,842.54-2,000.96

Finding the Fourth Proportional to 2,788.28, 3,842.54 and 2,000.96

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Solution

The fourth proportional to 2,788.28, 3,842.54 and 2,000.96 is: 2,757.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.28 : 3,842.54 = 2,000.96 : x
  2. Step 2: Convert to fraction form
    2,788.28/3,842.54 = 2,000.96/x
  3. Step 3: Cross multiply
    2,788.28x = 3,842.54 × 2,000.96
  4. Step 4: Simplify right side
    2,788.28x = 7,688,768.84
  5. Step 5: Solve for x
    x = 7,688,768.84/2,788.28
  6. Step 6: Final answer
    x = 2,757.53

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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.