Home / 4,815.86-6,645.81-2,691.42

Finding the Fourth Proportional to 4,815.86, 6,645.81 and 2,691.42

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Solution

The fourth proportional to 4,815.86, 6,645.81 and 2,691.42 is: 3,714.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.86 : 6,645.81 = 2,691.42 : x
  2. Step 2: Convert to fraction form
    4,815.86/6,645.81 = 2,691.42/x
  3. Step 3: Cross multiply
    4,815.86x = 6,645.81 × 2,691.42
  4. Step 4: Simplify right side
    4,815.86x = 17,886,665.95
  5. Step 5: Solve for x
    x = 17,886,665.95/4,815.86
  6. Step 6: Final answer
    x = 3,714.12

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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.