Home / 5,281.33-7,287.73-3,156.44

Finding the Fourth Proportional to 5,281.33, 7,287.73 and 3,156.44

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Solution

The fourth proportional to 5,281.33, 7,287.73 and 3,156.44 is: 4,355.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,281.33 : 7,287.73 = 3,156.44 : x
  2. Step 2: Convert to fraction form
    5,281.33/7,287.73 = 3,156.44/x
  3. Step 3: Cross multiply
    5,281.33x = 7,287.73 × 3,156.44
  4. Step 4: Simplify right side
    5,281.33x = 23,003,242.17
  5. Step 5: Solve for x
    x = 23,003,242.17/5,281.33
  6. Step 6: Final answer
    x = 4,355.58

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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.