Home / 4,938.78-6,815.46-2,700.78

Finding the Fourth Proportional to 4,938.78, 6,815.46 and 2,700.78

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Solution

The fourth proportional to 4,938.78, 6,815.46 and 2,700.78 is: 3,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.78 : 6,815.46 = 2,700.78 : x
  2. Step 2: Convert to fraction form
    4,938.78/6,815.46 = 2,700.78/x
  3. Step 3: Cross multiply
    4,938.78x = 6,815.46 × 2,700.78
  4. Step 4: Simplify right side
    4,938.78x = 18,407,058.06
  5. Step 5: Solve for x
    x = 18,407,058.06/4,938.78
  6. Step 6: Final answer
    x = 3,727.05

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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.