Home / 2,991.28-4,486.80-2,110.16

Finding the Fourth Proportional to 2,991.28, 4,486.80 and 2,110.16

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Solution

The fourth proportional to 2,991.28, 4,486.80 and 2,110.16 is: 3,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.28 : 4,486.80 = 2,110.16 : x
  2. Step 2: Convert to fraction form
    2,991.28/4,486.80 = 2,110.16/x
  3. Step 3: Cross multiply
    2,991.28x = 4,486.80 × 2,110.16
  4. Step 4: Simplify right side
    2,991.28x = 9,467,865.89
  5. Step 5: Solve for x
    x = 9,467,865.89/2,991.28
  6. Step 6: Final answer
    x = 3,165.16

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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.