Home / 7,725.72-10,661.46-4,188.93

Finding the Fourth Proportional to 7,725.72, 10,661.46 and 4,188.93

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Solution

The fourth proportional to 7,725.72, 10,661.46 and 4,188.93 is: 5,780.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.72 : 10,661.46 = 4,188.93 : x
  2. Step 2: Convert to fraction form
    7,725.72/10,661.46 = 4,188.93/x
  3. Step 3: Cross multiply
    7,725.72x = 10,661.46 × 4,188.93
  4. Step 4: Simplify right side
    7,725.72x = 44,660,109.64
  5. Step 5: Solve for x
    x = 44,660,109.64/7,725.72
  6. Step 6: Final answer
    x = 5,780.71

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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.