Home / 3,489.48-4,813.56-2,211.02

Finding the Fourth Proportional to 3,489.48, 4,813.56 and 2,211.02

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Solution

The fourth proportional to 3,489.48, 4,813.56 and 2,211.02 is: 3,049.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,489.48 : 4,813.56 = 2,211.02 : x
  2. Step 2: Convert to fraction form
    3,489.48/4,813.56 = 2,211.02/x
  3. Step 3: Cross multiply
    3,489.48x = 4,813.56 × 2,211.02
  4. Step 4: Simplify right side
    3,489.48x = 10,642,877.43
  5. Step 5: Solve for x
    x = 10,642,877.43/3,489.48
  6. Step 6: Final answer
    x = 3,049.99

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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.