Home / 5,091.03-7,639.28-2,171.38

Finding the Fourth Proportional to 5,091.03, 7,639.28 and 2,171.38

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Solution

The fourth proportional to 5,091.03, 7,639.28 and 2,171.38 is: 3,258.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,091.03 : 7,639.28 = 2,171.38 : x
  2. Step 2: Convert to fraction form
    5,091.03/7,639.28 = 2,171.38/x
  3. Step 3: Cross multiply
    5,091.03x = 7,639.28 × 2,171.38
  4. Step 4: Simplify right side
    5,091.03x = 16,587,779.81
  5. Step 5: Solve for x
    x = 16,587,779.81/5,091.03
  6. Step 6: Final answer
    x = 3,258.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.