Home / 4,877.44-6,730.88-2,781.56

Finding the Fourth Proportional to 4,877.44, 6,730.88 and 2,781.56

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Solution

The fourth proportional to 4,877.44, 6,730.88 and 2,781.56 is: 3,838.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.44 : 6,730.88 = 2,781.56 : x
  2. Step 2: Convert to fraction form
    4,877.44/6,730.88 = 2,781.56/x
  3. Step 3: Cross multiply
    4,877.44x = 6,730.88 × 2,781.56
  4. Step 4: Simplify right side
    4,877.44x = 18,722,349.49
  5. Step 5: Solve for x
    x = 18,722,349.49/4,877.44
  6. Step 6: Final answer
    x = 3,838.56

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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.