Home / 4,877.42-6,731.07-2,781.50

Finding the Fourth Proportional to 4,877.42, 6,731.07 and 2,781.50

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Solution

The fourth proportional to 4,877.42, 6,731.07 and 2,781.50 is: 3,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.42 : 6,731.07 = 2,781.50 : x
  2. Step 2: Convert to fraction form
    4,877.42/6,731.07 = 2,781.50/x
  3. Step 3: Cross multiply
    4,877.42x = 6,731.07 × 2,781.50
  4. Step 4: Simplify right side
    4,877.42x = 18,722,471.21
  5. Step 5: Solve for x
    x = 18,722,471.21/4,877.42
  6. Step 6: Final answer
    x = 3,838.60

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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.