Home / 4,905.89-6,769.98-2,809.88

Finding the Fourth Proportional to 4,905.89, 6,769.98 and 2,809.88

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Solution

The fourth proportional to 4,905.89, 6,769.98 and 2,809.88 is: 3,877.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.89 : 6,769.98 = 2,809.88 : x
  2. Step 2: Convert to fraction form
    4,905.89/6,769.98 = 2,809.88/x
  3. Step 3: Cross multiply
    4,905.89x = 6,769.98 × 2,809.88
  4. Step 4: Simplify right side
    4,905.89x = 19,022,831.40
  5. Step 5: Solve for x
    x = 19,022,831.40/4,905.89
  6. Step 6: Final answer
    x = 3,877.55

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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.