Home / 3,381.21-4,663.05-2,122.41

Finding the Fourth Proportional to 3,381.21, 4,663.05 and 2,122.41

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Solution

The fourth proportional to 3,381.21, 4,663.05 and 2,122.41 is: 2,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,381.21 : 4,663.05 = 2,122.41 : x
  2. Step 2: Convert to fraction form
    3,381.21/4,663.05 = 2,122.41/x
  3. Step 3: Cross multiply
    3,381.21x = 4,663.05 × 2,122.41
  4. Step 4: Simplify right side
    3,381.21x = 9,896,903.95
  5. Step 5: Solve for x
    x = 9,896,903.95/3,381.21
  6. Step 6: Final answer
    x = 2,927.03

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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.