Home / 6,991.15-10,486.70-2,060.78

Finding the Fourth Proportional to 6,991.15, 10,486.70 and 2,060.78

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Solution

The fourth proportional to 6,991.15, 10,486.70 and 2,060.78 is: 3,091.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.15 : 10,486.70 = 2,060.78 : x
  2. Step 2: Convert to fraction form
    6,991.15/10,486.70 = 2,060.78/x
  3. Step 3: Cross multiply
    6,991.15x = 10,486.70 × 2,060.78
  4. Step 4: Simplify right side
    6,991.15x = 21,610,781.63
  5. Step 5: Solve for x
    x = 21,610,781.63/6,991.15
  6. Step 6: Final answer
    x = 3,091.16

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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.