Home / 4,905.18-6,768.99-2,809.17

Finding the Fourth Proportional to 4,905.18, 6,768.99 and 2,809.17

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Solution

The fourth proportional to 4,905.18, 6,768.99 and 2,809.17 is: 3,876.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.18 : 6,768.99 = 2,809.17 : x
  2. Step 2: Convert to fraction form
    4,905.18/6,768.99 = 2,809.17/x
  3. Step 3: Cross multiply
    4,905.18x = 6,768.99 × 2,809.17
  4. Step 4: Simplify right side
    4,905.18x = 19,015,243.64
  5. Step 5: Solve for x
    x = 19,015,243.64/4,905.18
  6. Step 6: Final answer
    x = 3,876.56

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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.