Home / 4,939.31-6,815.12-2,949.48

Finding the Fourth Proportional to 4,939.31, 6,815.12 and 2,949.48

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Solution

The fourth proportional to 4,939.31, 6,815.12 and 2,949.48 is: 4,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,939.31 : 6,815.12 = 2,949.48 : x
  2. Step 2: Convert to fraction form
    4,939.31/6,815.12 = 2,949.48/x
  3. Step 3: Cross multiply
    4,939.31x = 6,815.12 × 2,949.48
  4. Step 4: Simplify right side
    4,939.31x = 20,101,045.39
  5. Step 5: Solve for x
    x = 20,101,045.39/4,939.31
  6. Step 6: Final answer
    x = 4,069.60

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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.