Home / 2,756.13-4,134.21-808.44

Finding the Fourth Proportional to 2,756.13, 4,134.21 and 808.44

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Solution

The fourth proportional to 2,756.13, 4,134.21 and 808.44 is: 1,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.13 : 4,134.21 = 808.44 : x
  2. Step 2: Convert to fraction form
    2,756.13/4,134.21 = 808.44/x
  3. Step 3: Cross multiply
    2,756.13x = 4,134.21 × 808.44
  4. Step 4: Simplify right side
    2,756.13x = 3,342,260.73
  5. Step 5: Solve for x
    x = 3,342,260.73/2,756.13
  6. Step 6: Final answer
    x = 1,212.66

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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.