Home / 6,514.72-8,988.96-3,719.68

Finding the Fourth Proportional to 6,514.72, 8,988.96 and 3,719.68

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Solution

The fourth proportional to 6,514.72, 8,988.96 and 3,719.68 is: 5,132.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,514.72 : 8,988.96 = 3,719.68 : x
  2. Step 2: Convert to fraction form
    6,514.72/8,988.96 = 3,719.68/x
  3. Step 3: Cross multiply
    6,514.72x = 8,988.96 × 3,719.68
  4. Step 4: Simplify right side
    6,514.72x = 33,436,054.73
  5. Step 5: Solve for x
    x = 33,436,054.73/6,514.72
  6. Step 6: Final answer
    x = 5,132.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.