Home / 5,231.64-7,220.91-2,994.81

Finding the Fourth Proportional to 5,231.64, 7,220.91 and 2,994.81

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Solution

The fourth proportional to 5,231.64, 7,220.91 and 2,994.81 is: 4,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,231.64 : 7,220.91 = 2,994.81 : x
  2. Step 2: Convert to fraction form
    5,231.64/7,220.91 = 2,994.81/x
  3. Step 3: Cross multiply
    5,231.64x = 7,220.91 × 2,994.81
  4. Step 4: Simplify right side
    5,231.64x = 21,625,278.25
  5. Step 5: Solve for x
    x = 21,625,278.25/5,231.64
  6. Step 6: Final answer
    x = 4,133.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.