Home / 7,710.50-11,564.89-2,164.06

Finding the Fourth Proportional to 7,710.50, 11,564.89 and 2,164.06

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Solution

The fourth proportional to 7,710.50, 11,564.89 and 2,164.06 is: 3,245.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,710.50 : 11,564.89 = 2,164.06 : x
  2. Step 2: Convert to fraction form
    7,710.50/11,564.89 = 2,164.06/x
  3. Step 3: Cross multiply
    7,710.50x = 11,564.89 × 2,164.06
  4. Step 4: Simplify right side
    7,710.50x = 25,027,115.85
  5. Step 5: Solve for x
    x = 25,027,115.85/7,710.50
  6. Step 6: Final answer
    x = 3,245.85

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1.5x scale

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.