Home / 3,989.73-5,506.01-3,325.47

Finding the Fourth Proportional to 3,989.73, 5,506.01 and 3,325.47

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Solution

The fourth proportional to 3,989.73, 5,506.01 and 3,325.47 is: 4,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.73 : 5,506.01 = 3,325.47 : x
  2. Step 2: Convert to fraction form
    3,989.73/5,506.01 = 3,325.47/x
  3. Step 3: Cross multiply
    3,989.73x = 5,506.01 × 3,325.47
  4. Step 4: Simplify right side
    3,989.73x = 18,310,071.07
  5. Step 5: Solve for x
    x = 18,310,071.07/3,989.73
  6. Step 6: Final answer
    x = 4,589.30

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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.