Home / 3,421.91-4,721.09-2,226.35

Finding the Fourth Proportional to 3,421.91, 4,721.09 and 2,226.35

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Solution

The fourth proportional to 3,421.91, 4,721.09 and 2,226.35 is: 3,071.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.91 : 4,721.09 = 2,226.35 : x
  2. Step 2: Convert to fraction form
    3,421.91/4,721.09 = 2,226.35/x
  3. Step 3: Cross multiply
    3,421.91x = 4,721.09 × 2,226.35
  4. Step 4: Simplify right side
    3,421.91x = 10,510,799.39
  5. Step 5: Solve for x
    x = 10,510,799.39/3,421.91
  6. Step 6: Final answer
    x = 3,071.62

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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.