Home / 3,421.95-4,722.34-2,005.29

Finding the Fourth Proportional to 3,421.95, 4,722.34 and 2,005.29

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Solution

The fourth proportional to 3,421.95, 4,722.34 and 2,005.29 is: 2,767.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.95 : 4,722.34 = 2,005.29 : x
  2. Step 2: Convert to fraction form
    3,421.95/4,722.34 = 2,005.29/x
  3. Step 3: Cross multiply
    3,421.95x = 4,722.34 × 2,005.29
  4. Step 4: Simplify right side
    3,421.95x = 9,469,661.18
  5. Step 5: Solve for x
    x = 9,469,661.18/3,421.95
  6. Step 6: Final answer
    x = 2,767.33

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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.