Home / 4,905.42-6,769.33-2,781.15

Finding the Fourth Proportional to 4,905.42, 6,769.33 and 2,781.15

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Solution

The fourth proportional to 4,905.42, 6,769.33 and 2,781.15 is: 3,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,905.42 : 6,769.33 = 2,781.15 : x
  2. Step 2: Convert to fraction form
    4,905.42/6,769.33 = 2,781.15/x
  3. Step 3: Cross multiply
    4,905.42x = 6,769.33 × 2,781.15
  4. Step 4: Simplify right side
    4,905.42x = 18,826,522.13
  5. Step 5: Solve for x
    x = 18,826,522.13/4,905.42
  6. Step 6: Final answer
    x = 3,837.90

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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.