Home / 3,618.36-4,988.84-3,049.74

Finding the Fourth Proportional to 3,618.36, 4,988.84 and 3,049.74

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Solution

The fourth proportional to 3,618.36, 4,988.84 and 3,049.74 is: 4,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.36 : 4,988.84 = 3,049.74 : x
  2. Step 2: Convert to fraction form
    3,618.36/4,988.84 = 3,049.74/x
  3. Step 3: Cross multiply
    3,618.36x = 4,988.84 × 3,049.74
  4. Step 4: Simplify right side
    3,618.36x = 15,214,664.90
  5. Step 5: Solve for x
    x = 15,214,664.90/3,618.36
  6. Step 6: Final answer
    x = 4,204.85

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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.