Home / 5,377.84-8,049.40-2,777.20

Finding the Fourth Proportional to 5,377.84, 8,049.40 and 2,777.20

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Solution

The fourth proportional to 5,377.84, 8,049.40 and 2,777.20 is: 4,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.84 : 8,049.40 = 2,777.20 : x
  2. Step 2: Convert to fraction form
    5,377.84/8,049.40 = 2,777.20/x
  3. Step 3: Cross multiply
    5,377.84x = 8,049.40 × 2,777.20
  4. Step 4: Simplify right side
    5,377.84x = 22,354,793.68
  5. Step 5: Solve for x
    x = 22,354,793.68/5,377.84
  6. Step 6: Final answer
    x = 4,156.84

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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.