Home / 7,775.10-11,656.12-3,389.26

Finding the Fourth Proportional to 7,775.10, 11,656.12 and 3,389.26

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Solution

The fourth proportional to 7,775.10, 11,656.12 and 3,389.26 is: 5,081.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,775.10 : 11,656.12 = 3,389.26 : x
  2. Step 2: Convert to fraction form
    7,775.10/11,656.12 = 3,389.26/x
  3. Step 3: Cross multiply
    7,775.10x = 11,656.12 × 3,389.26
  4. Step 4: Simplify right side
    7,775.10x = 39,505,621.27
  5. Step 5: Solve for x
    x = 39,505,621.27/7,775.10
  6. Step 6: Final answer
    x = 5,081.04

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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.