Home / 4,977.19-7,468.89-2,787.36

Finding the Fourth Proportional to 4,977.19, 7,468.89 and 2,787.36

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Solution

The fourth proportional to 4,977.19, 7,468.89 and 2,787.36 is: 4,182.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.19 : 7,468.89 = 2,787.36 : x
  2. Step 2: Convert to fraction form
    4,977.19/7,468.89 = 2,787.36/x
  3. Step 3: Cross multiply
    4,977.19x = 7,468.89 × 2,787.36
  4. Step 4: Simplify right side
    4,977.19x = 20,818,485.23
  5. Step 5: Solve for x
    x = 20,818,485.23/4,977.19
  6. Step 6: Final answer
    x = 4,182.78

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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.