Home / 4,905.36-6,769.58-2,809.89

Finding the Fourth Proportional to 4,905.36, 6,769.58 and 2,809.89

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Solution

The fourth proportional to 4,905.36, 6,769.58 and 2,809.89 is: 3,877.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.36 : 6,769.58 = 2,809.89 : x
  2. Step 2: Convert to fraction form
    4,905.36/6,769.58 = 2,809.89/x
  3. Step 3: Cross multiply
    4,905.36x = 6,769.58 × 2,809.89
  4. Step 4: Simplify right side
    4,905.36x = 19,021,761.10
  5. Step 5: Solve for x
    x = 19,021,761.10/4,905.36
  6. Step 6: Final answer
    x = 3,877.75

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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.