Home / 4,904.66-6,768.72-2,780.28

Finding the Fourth Proportional to 4,904.66, 6,768.72 and 2,780.28

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Solution

The fourth proportional to 4,904.66, 6,768.72 and 2,780.28 is: 3,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,904.66 : 6,768.72 = 2,780.28 : x
  2. Step 2: Convert to fraction form
    4,904.66/6,768.72 = 2,780.28/x
  3. Step 3: Cross multiply
    4,904.66x = 6,768.72 × 2,780.28
  4. Step 4: Simplify right side
    4,904.66x = 18,818,947.27
  5. Step 5: Solve for x
    x = 18,818,947.27/4,904.66
  6. Step 6: Final answer
    x = 3,836.95

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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.