Home / 2,808.23-4,212.79-934.19

Finding the Fourth Proportional to 2,808.23, 4,212.79 and 934.19

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Solution

The fourth proportional to 2,808.23, 4,212.79 and 934.19 is: 1,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.23 : 4,212.79 = 934.19 : x
  2. Step 2: Convert to fraction form
    2,808.23/4,212.79 = 934.19/x
  3. Step 3: Cross multiply
    2,808.23x = 4,212.79 × 934.19
  4. Step 4: Simplify right side
    2,808.23x = 3,935,525.23
  5. Step 5: Solve for x
    x = 3,935,525.23/2,808.23
  6. Step 6: Final answer
    x = 1,401.43

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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.