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Finding the Fourth Proportional to 5,220.48, 7,829.16 and 2,753.97

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Solution

The fourth proportional to 5,220.48, 7,829.16 and 2,753.97 is: 4,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.48 : 7,829.16 = 2,753.97 : x
  2. Step 2: Convert to fraction form
    5,220.48/7,829.16 = 2,753.97/x
  3. Step 3: Cross multiply
    5,220.48x = 7,829.16 × 2,753.97
  4. Step 4: Simplify right side
    5,220.48x = 21,561,271.77
  5. Step 5: Solve for x
    x = 21,561,271.77/5,220.48
  6. Step 6: Final answer
    x = 4,130.13

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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.