Home / 2,809.11-4,214.92-1,422.19

Finding the Fourth Proportional to 2,809.11, 4,214.92 and 1,422.19

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Solution

The fourth proportional to 2,809.11, 4,214.92 and 1,422.19 is: 2,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,809.11 : 4,214.92 = 1,422.19 : x
  2. Step 2: Convert to fraction form
    2,809.11/4,214.92 = 1,422.19/x
  3. Step 3: Cross multiply
    2,809.11x = 4,214.92 × 1,422.19
  4. Step 4: Simplify right side
    2,809.11x = 5,994,417.07
  5. Step 5: Solve for x
    x = 5,994,417.07/2,809.11
  6. Step 6: Final answer
    x = 2,133.92

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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.