Home / 5,112.18-7,666.65-2,514.78

Finding the Fourth Proportional to 5,112.18, 7,666.65 and 2,514.78

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Solution

The fourth proportional to 5,112.18, 7,666.65 and 2,514.78 is: 3,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,112.18 : 7,666.65 = 2,514.78 : x
  2. Step 2: Convert to fraction form
    5,112.18/7,666.65 = 2,514.78/x
  3. Step 3: Cross multiply
    5,112.18x = 7,666.65 × 2,514.78
  4. Step 4: Simplify right side
    5,112.18x = 19,279,938.09
  5. Step 5: Solve for x
    x = 19,279,938.09/5,112.18
  6. Step 6: Final answer
    x = 3,771.37

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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.