Home / 3,619.08-4,991.49-2,291.49

Finding the Fourth Proportional to 3,619.08, 4,991.49 and 2,291.49

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Solution

The fourth proportional to 3,619.08, 4,991.49 and 2,291.49 is: 3,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.08 : 4,991.49 = 2,291.49 : x
  2. Step 2: Convert to fraction form
    3,619.08/4,991.49 = 2,291.49/x
  3. Step 3: Cross multiply
    3,619.08x = 4,991.49 × 2,291.49
  4. Step 4: Simplify right side
    3,619.08x = 11,437,949.42
  5. Step 5: Solve for x
    x = 11,437,949.42/3,619.08
  6. Step 6: Final answer
    x = 3,160.46

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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.