Home / 5,217.48-7,820.28-2,755.08

Finding the Fourth Proportional to 5,217.48, 7,820.28 and 2,755.08

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Solution

The fourth proportional to 5,217.48, 7,820.28 and 2,755.08 is: 4,129.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,217.48 : 7,820.28 = 2,755.08 : x
  2. Step 2: Convert to fraction form
    5,217.48/7,820.28 = 2,755.08/x
  3. Step 3: Cross multiply
    5,217.48x = 7,820.28 × 2,755.08
  4. Step 4: Simplify right side
    5,217.48x = 21,545,497.02
  5. Step 5: Solve for x
    x = 21,545,497.02/5,217.48
  6. Step 6: Final answer
    x = 4,129.48

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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.