Home / 4,187.52-5,777.28-2,787.84

Finding the Fourth Proportional to 4,187.52, 5,777.28 and 2,787.84

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Solution

The fourth proportional to 4,187.52, 5,777.28 and 2,787.84 is: 3,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,187.52 : 5,777.28 = 2,787.84 : x
  2. Step 2: Convert to fraction form
    4,187.52/5,777.28 = 2,787.84/x
  3. Step 3: Cross multiply
    4,187.52x = 5,777.28 × 2,787.84
  4. Step 4: Simplify right side
    4,187.52x = 16,106,132.28
  5. Step 5: Solve for x
    x = 16,106,132.28/4,187.52
  6. Step 6: Final answer
    x = 3,846.22

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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.