Home / 7,788.06-11,686.98-3,171.06

Finding the Fourth Proportional to 7,788.06, 11,686.98 and 3,171.06

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Solution

The fourth proportional to 7,788.06, 11,686.98 and 3,171.06 is: 4,758.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.06 : 11,686.98 = 3,171.06 : x
  2. Step 2: Convert to fraction form
    7,788.06/11,686.98 = 3,171.06/x
  3. Step 3: Cross multiply
    7,788.06x = 11,686.98 × 3,171.06
  4. Step 4: Simplify right side
    7,788.06x = 37,060,114.80
  5. Step 5: Solve for x
    x = 37,060,114.80/7,788.06
  6. Step 6: Final answer
    x = 4,758.58

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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.