Home / 5,220.93-7,811.77-3,663.97

Finding the Fourth Proportional to 5,220.93, 7,811.77 and 3,663.97

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Solution

The fourth proportional to 5,220.93, 7,811.77 and 3,663.97 is: 5,482.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,220.93 : 7,811.77 = 3,663.97 : x
  2. Step 2: Convert to fraction form
    5,220.93/7,811.77 = 3,663.97/x
  3. Step 3: Cross multiply
    5,220.93x = 7,811.77 × 3,663.97
  4. Step 4: Simplify right side
    5,220.93x = 28,622,090.93
  5. Step 5: Solve for x
    x = 28,622,090.93/5,220.93
  6. Step 6: Final answer
    x = 5,482.18

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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.