Home / 3,421.98-4,722.40-2,006.75

Finding the Fourth Proportional to 3,421.98, 4,722.40 and 2,006.75

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Solution

The fourth proportional to 3,421.98, 4,722.40 and 2,006.75 is: 2,769.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.98 : 4,722.40 = 2,006.75 : x
  2. Step 2: Convert to fraction form
    3,421.98/4,722.40 = 2,006.75/x
  3. Step 3: Cross multiply
    3,421.98x = 4,722.40 × 2,006.75
  4. Step 4: Simplify right side
    3,421.98x = 9,476,677.23
  5. Step 5: Solve for x
    x = 9,476,677.23/3,421.98
  6. Step 6: Final answer
    x = 2,769.36

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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.