Home / 4,877.47-6,728.69-3,107.97

Finding the Fourth Proportional to 4,877.47, 6,728.69 and 3,107.97

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Solution

The fourth proportional to 4,877.47, 6,728.69 and 3,107.97 is: 4,287.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.47 : 6,728.69 = 3,107.97 : x
  2. Step 2: Convert to fraction form
    4,877.47/6,728.69 = 3,107.97/x
  3. Step 3: Cross multiply
    4,877.47x = 6,728.69 × 3,107.97
  4. Step 4: Simplify right side
    4,877.47x = 20,912,566.66
  5. Step 5: Solve for x
    x = 20,912,566.66/4,877.47
  6. Step 6: Final answer
    x = 4,287.59

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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.