Home / 3,388.99-4,675.17-2,129.41

Finding the Fourth Proportional to 3,388.99, 4,675.17 and 2,129.41

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Solution

The fourth proportional to 3,388.99, 4,675.17 and 2,129.41 is: 2,937.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388.99 : 4,675.17 = 2,129.41 : x
  2. Step 2: Convert to fraction form
    3,388.99/4,675.17 = 2,129.41/x
  3. Step 3: Cross multiply
    3,388.99x = 4,675.17 × 2,129.41
  4. Step 4: Simplify right side
    3,388.99x = 9,955,353.75
  5. Step 5: Solve for x
    x = 9,955,353.75/3,388.99
  6. Step 6: Final answer
    x = 2,937.56

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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.