Home / 2,199.12-3,298.37-738.29

Finding the Fourth Proportional to 2,199.12, 3,298.37 and 738.29

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Solution

The fourth proportional to 2,199.12, 3,298.37 and 738.29 is: 1,107.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,199.12 : 3,298.37 = 738.29 : x
  2. Step 2: Convert to fraction form
    2,199.12/3,298.37 = 738.29/x
  3. Step 3: Cross multiply
    2,199.12x = 3,298.37 × 738.29
  4. Step 4: Simplify right side
    2,199.12x = 2,435,133.40
  5. Step 5: Solve for x
    x = 2,435,133.40/2,199.12
  6. Step 6: Final answer
    x = 1,107.32

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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.