Home / 2,777.28-3,828.96-2,077.44

Finding the Fourth Proportional to 2,777.28, 3,828.96 and 2,077.44

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Solution

The fourth proportional to 2,777.28, 3,828.96 and 2,077.44 is: 2,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,777.28 : 3,828.96 = 2,077.44 : x
  2. Step 2: Convert to fraction form
    2,777.28/3,828.96 = 2,077.44/x
  3. Step 3: Cross multiply
    2,777.28x = 3,828.96 × 2,077.44
  4. Step 4: Simplify right side
    2,777.28x = 7,954,434.66
  5. Step 5: Solve for x
    x = 7,954,434.66/2,777.28
  6. Step 6: Final answer
    x = 2,864.11

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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.