Home / 5,155.36-7,721.01-3,765.25

Finding the Fourth Proportional to 5,155.36, 7,721.01 and 3,765.25

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Solution

The fourth proportional to 5,155.36, 7,721.01 and 3,765.25 is: 5,639.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,155.36 : 7,721.01 = 3,765.25 : x
  2. Step 2: Convert to fraction form
    5,155.36/7,721.01 = 3,765.25/x
  3. Step 3: Cross multiply
    5,155.36x = 7,721.01 × 3,765.25
  4. Step 4: Simplify right side
    5,155.36x = 29,071,532.90
  5. Step 5: Solve for x
    x = 29,071,532.90/5,155.36
  6. Step 6: Final answer
    x = 5,639.09

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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.