Home / 7,618.56-11,428.07-2,691.60

Finding the Fourth Proportional to 7,618.56, 11,428.07 and 2,691.60

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Solution

The fourth proportional to 7,618.56, 11,428.07 and 2,691.60 is: 4,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.56 : 11,428.07 = 2,691.60 : x
  2. Step 2: Convert to fraction form
    7,618.56/11,428.07 = 2,691.60/x
  3. Step 3: Cross multiply
    7,618.56x = 11,428.07 × 2,691.60
  4. Step 4: Simplify right side
    7,618.56x = 30,759,779.75
  5. Step 5: Solve for x
    x = 30,759,779.75/7,618.56
  6. Step 6: Final answer
    x = 4,037.48

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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.