Home / 4,905.52-6,769.64-2,809.76

Finding the Fourth Proportional to 4,905.52, 6,769.64 and 2,809.76

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Solution

The fourth proportional to 4,905.52, 6,769.64 and 2,809.76 is: 3,877.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.52 : 6,769.64 = 2,809.76 : x
  2. Step 2: Convert to fraction form
    4,905.52/6,769.64 = 2,809.76/x
  3. Step 3: Cross multiply
    4,905.52x = 6,769.64 × 2,809.76
  4. Step 4: Simplify right side
    4,905.52x = 19,021,063.69
  5. Step 5: Solve for x
    x = 19,021,063.69/4,905.52
  6. Step 6: Final answer
    x = 3,877.48

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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.