Home / 5,113.61-7,664.13-2,647.02

Finding the Fourth Proportional to 5,113.61, 7,664.13 and 2,647.02

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Solution

The fourth proportional to 5,113.61, 7,664.13 and 2,647.02 is: 3,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,113.61 : 7,664.13 = 2,647.02 : x
  2. Step 2: Convert to fraction form
    5,113.61/7,664.13 = 2,647.02/x
  3. Step 3: Cross multiply
    5,113.61x = 7,664.13 × 2,647.02
  4. Step 4: Simplify right side
    5,113.61x = 20,287,105.39
  5. Step 5: Solve for x
    x = 20,287,105.39/5,113.61
  6. Step 6: Final answer
    x = 3,967.28

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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.