Home / 3,688.36-5,086.10-2,849.20

Finding the Fourth Proportional to 3,688.36, 5,086.10 and 2,849.20

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Solution

The fourth proportional to 3,688.36, 5,086.10 and 2,849.20 is: 3,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.36 : 5,086.10 = 2,849.20 : x
  2. Step 2: Convert to fraction form
    3,688.36/5,086.10 = 2,849.20/x
  3. Step 3: Cross multiply
    3,688.36x = 5,086.10 × 2,849.20
  4. Step 4: Simplify right side
    3,688.36x = 14,491,316.12
  5. Step 5: Solve for x
    x = 14,491,316.12/3,688.36
  6. Step 6: Final answer
    x = 3,928.93

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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.