Home / 5,420.33-8,132.04-2,647.02

Finding the Fourth Proportional to 5,420.33, 8,132.04 and 2,647.02

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Solution

The fourth proportional to 5,420.33, 8,132.04 and 2,647.02 is: 3,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.33 : 8,132.04 = 2,647.02 : x
  2. Step 2: Convert to fraction form
    5,420.33/8,132.04 = 2,647.02/x
  3. Step 3: Cross multiply
    5,420.33x = 8,132.04 × 2,647.02
  4. Step 4: Simplify right side
    5,420.33x = 21,525,672.52
  5. Step 5: Solve for x
    x = 21,525,672.52/5,420.33
  6. Step 6: Final answer
    x = 3,971.29

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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.