Home / 3,135.11-4,326.44-1,808.81

Finding the Fourth Proportional to 3,135.11, 4,326.44 and 1,808.81

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Solution

The fourth proportional to 3,135.11, 4,326.44 and 1,808.81 is: 2,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,135.11 : 4,326.44 = 1,808.81 : x
  2. Step 2: Convert to fraction form
    3,135.11/4,326.44 = 1,808.81/x
  3. Step 3: Cross multiply
    3,135.11x = 4,326.44 × 1,808.81
  4. Step 4: Simplify right side
    3,135.11x = 7,825,707.94
  5. Step 5: Solve for x
    x = 7,825,707.94/3,135.11
  6. Step 6: Final answer
    x = 2,496.15

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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.