Home / 7,723.77-11,589.86-3,280.74

Finding the Fourth Proportional to 7,723.77, 11,589.86 and 3,280.74

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Solution

The fourth proportional to 7,723.77, 11,589.86 and 3,280.74 is: 4,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.77 : 11,589.86 = 3,280.74 : x
  2. Step 2: Convert to fraction form
    7,723.77/11,589.86 = 3,280.74/x
  3. Step 3: Cross multiply
    7,723.77x = 11,589.86 × 3,280.74
  4. Step 4: Simplify right side
    7,723.77x = 38,023,317.30
  5. Step 5: Solve for x
    x = 38,023,317.30/7,723.77
  6. Step 6: Final answer
    x = 4,922.90

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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.