Home / 7,724.22-10,659.42-4,187.40

Finding the Fourth Proportional to 7,724.22, 10,659.42 and 4,187.40

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Solution

The fourth proportional to 7,724.22, 10,659.42 and 4,187.40 is: 5,778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.22 : 10,659.42 = 4,187.40 : x
  2. Step 2: Convert to fraction form
    7,724.22/10,659.42 = 4,187.40/x
  3. Step 3: Cross multiply
    7,724.22x = 10,659.42 × 4,187.40
  4. Step 4: Simplify right side
    7,724.22x = 44,635,255.31
  5. Step 5: Solve for x
    x = 44,635,255.31/7,724.22
  6. Step 6: Final answer
    x = 5,778.61

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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.