Home / 4,905.51-6,769.11-2,780.62

Finding the Fourth Proportional to 4,905.51, 6,769.11 and 2,780.62

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Solution

The fourth proportional to 4,905.51, 6,769.11 and 2,780.62 is: 3,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.51 : 6,769.11 = 2,780.62 : x
  2. Step 2: Convert to fraction form
    4,905.51/6,769.11 = 2,780.62/x
  3. Step 3: Cross multiply
    4,905.51x = 6,769.11 × 2,780.62
  4. Step 4: Simplify right side
    4,905.51x = 18,822,316.15
  5. Step 5: Solve for x
    x = 18,822,316.15/4,905.51
  6. Step 6: Final answer
    x = 3,836.98

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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.