Home / 5,355.16-7,389.78-2,997.28

Finding the Fourth Proportional to 5,355.16, 7,389.78 and 2,997.28

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Solution

The fourth proportional to 5,355.16, 7,389.78 and 2,997.28 is: 4,136.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.16 : 7,389.78 = 2,997.28 : x
  2. Step 2: Convert to fraction form
    5,355.16/7,389.78 = 2,997.28/x
  3. Step 3: Cross multiply
    5,355.16x = 7,389.78 × 2,997.28
  4. Step 4: Simplify right side
    5,355.16x = 22,149,239.80
  5. Step 5: Solve for x
    x = 22,149,239.80/5,355.16
  6. Step 6: Final answer
    x = 4,136.06

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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.