Home / 5,221.47-7,832.66-2,101.35

Finding the Fourth Proportional to 5,221.47, 7,832.66 and 2,101.35

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Solution

The fourth proportional to 5,221.47, 7,832.66 and 2,101.35 is: 3,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.47 : 7,832.66 = 2,101.35 : x
  2. Step 2: Convert to fraction form
    5,221.47/7,832.66 = 2,101.35/x
  3. Step 3: Cross multiply
    5,221.47x = 7,832.66 × 2,101.35
  4. Step 4: Simplify right side
    5,221.47x = 16,459,160.09
  5. Step 5: Solve for x
    x = 16,459,160.09/5,221.47
  6. Step 6: Final answer
    x = 3,152.21

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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.