Home / 3,989.24-5,505.54-2,418.44

Finding the Fourth Proportional to 3,989.24, 5,505.54 and 2,418.44

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Solution

The fourth proportional to 3,989.24, 5,505.54 and 2,418.44 is: 3,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.24 : 5,505.54 = 2,418.44 : x
  2. Step 2: Convert to fraction form
    3,989.24/5,505.54 = 2,418.44/x
  3. Step 3: Cross multiply
    3,989.24x = 5,505.54 × 2,418.44
  4. Step 4: Simplify right side
    3,989.24x = 13,314,818.16
  5. Step 5: Solve for x
    x = 13,314,818.16/3,989.24
  6. Step 6: Final answer
    x = 3,337.68

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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.