Home / 7,779.48-11,667.78-2,514.60

Finding the Fourth Proportional to 7,779.48, 11,667.78 and 2,514.60

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Solution

The fourth proportional to 7,779.48, 11,667.78 and 2,514.60 is: 3,771.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.48 : 11,667.78 = 2,514.60 : x
  2. Step 2: Convert to fraction form
    7,779.48/11,667.78 = 2,514.60/x
  3. Step 3: Cross multiply
    7,779.48x = 11,667.78 × 2,514.60
  4. Step 4: Simplify right side
    7,779.48x = 29,339,799.59
  5. Step 5: Solve for x
    x = 29,339,799.59/7,779.48
  6. Step 6: Final answer
    x = 3,771.43

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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.