Home / 7,021.64-9,691.38-4,788.85

Finding the Fourth Proportional to 7,021.64, 9,691.38 and 4,788.85

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Solution

The fourth proportional to 7,021.64, 9,691.38 and 4,788.85 is: 6,609.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.64 : 9,691.38 = 4,788.85 : x
  2. Step 2: Convert to fraction form
    7,021.64/9,691.38 = 4,788.85/x
  3. Step 3: Cross multiply
    7,021.64x = 9,691.38 × 4,788.85
  4. Step 4: Simplify right side
    7,021.64x = 46,410,565.11
  5. Step 5: Solve for x
    x = 46,410,565.11/7,021.64
  6. Step 6: Final answer
    x = 6,609.65

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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.