Home / 4,849.11-7,280.12-2,878.38

Finding the Fourth Proportional to 4,849.11, 7,280.12 and 2,878.38

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Solution

The fourth proportional to 4,849.11, 7,280.12 and 2,878.38 is: 4,321.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,849.11 : 7,280.12 = 2,878.38 : x
  2. Step 2: Convert to fraction form
    4,849.11/7,280.12 = 2,878.38/x
  3. Step 3: Cross multiply
    4,849.11x = 7,280.12 × 2,878.38
  4. Step 4: Simplify right side
    4,849.11x = 20,954,937.41
  5. Step 5: Solve for x
    x = 20,954,937.41/4,849.11
  6. Step 6: Final answer
    x = 4,321.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.