Home / 7,779.56-11,667.44-2,231.60

Finding the Fourth Proportional to 7,779.56, 11,667.44 and 2,231.60

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Solution

The fourth proportional to 7,779.56, 11,667.44 and 2,231.60 is: 3,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.56 : 11,667.44 = 2,231.60 : x
  2. Step 2: Convert to fraction form
    7,779.56/11,667.44 = 2,231.60/x
  3. Step 3: Cross multiply
    7,779.56x = 11,667.44 × 2,231.60
  4. Step 4: Simplify right side
    7,779.56x = 26,037,059.10
  5. Step 5: Solve for x
    x = 26,037,059.10/7,779.56
  6. Step 6: Final answer
    x = 3,346.85

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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.