Home / 6,991.65-10,487.45-2,061.28

Finding the Fourth Proportional to 6,991.65, 10,487.45 and 2,061.28

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Solution

The fourth proportional to 6,991.65, 10,487.45 and 2,061.28 is: 3,091.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.65 : 10,487.45 = 2,061.28 : x
  2. Step 2: Convert to fraction form
    6,991.65/10,487.45 = 2,061.28/x
  3. Step 3: Cross multiply
    6,991.65x = 10,487.45 × 2,061.28
  4. Step 4: Simplify right side
    6,991.65x = 21,617,570.94
  5. Step 5: Solve for x
    x = 21,617,570.94/6,991.65
  6. Step 6: Final answer
    x = 3,091.91

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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.