Home / 5,158.28-7,735.91-2,786.00

Finding the Fourth Proportional to 5,158.28, 7,735.91 and 2,786.00

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Solution

The fourth proportional to 5,158.28, 7,735.91 and 2,786.00 is: 4,178.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.28 : 7,735.91 = 2,786.00 : x
  2. Step 2: Convert to fraction form
    5,158.28/7,735.91 = 2,786.00/x
  3. Step 3: Cross multiply
    5,158.28x = 7,735.91 × 2,786.00
  4. Step 4: Simplify right side
    5,158.28x = 21,552,192.65
  5. Step 5: Solve for x
    x = 21,552,192.65/5,158.28
  6. Step 6: Final answer
    x = 4,178.17

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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.