Home / 7,725.60-10,661.38-4,188.83

Finding the Fourth Proportional to 7,725.60, 10,661.38 and 4,188.83

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Solution

The fourth proportional to 7,725.60, 10,661.38 and 4,188.83 is: 5,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.60 : 10,661.38 = 4,188.83 : x
  2. Step 2: Convert to fraction form
    7,725.60/10,661.38 = 4,188.83/x
  3. Step 3: Cross multiply
    7,725.60x = 10,661.38 × 4,188.83
  4. Step 4: Simplify right side
    7,725.60x = 44,658,708.39
  5. Step 5: Solve for x
    x = 44,658,708.39/7,725.60
  6. Step 6: Final answer
    x = 5,780.61

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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.