Home / 4,977.32-7,469.08-2,787.48

Finding the Fourth Proportional to 4,977.32, 7,469.08 and 2,787.48

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Solution

The fourth proportional to 4,977.32, 7,469.08 and 2,787.48 is: 4,182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,977.32 : 7,469.08 = 2,787.48 : x
  2. Step 2: Convert to fraction form
    4,977.32/7,469.08 = 2,787.48/x
  3. Step 3: Cross multiply
    4,977.32x = 7,469.08 × 2,787.48
  4. Step 4: Simplify right side
    4,977.32x = 20,819,904.15
  5. Step 5: Solve for x
    x = 20,819,904.15/4,977.32
  6. Step 6: Final answer
    x = 4,182.96

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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.