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Finding the Fourth Proportional to 5,220.71, 7,829.13 and 2,259.59

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Solution

The fourth proportional to 5,220.71, 7,829.13 and 2,259.59 is: 3,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.71 : 7,829.13 = 2,259.59 : x
  2. Step 2: Convert to fraction form
    5,220.71/7,829.13 = 2,259.59/x
  3. Step 3: Cross multiply
    5,220.71x = 7,829.13 × 2,259.59
  4. Step 4: Simplify right side
    5,220.71x = 17,690,593.18
  5. Step 5: Solve for x
    x = 17,690,593.18/5,220.71
  6. Step 6: Final answer
    x = 3,388.54

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1.5x scale

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.