Home / 7,335.92-10,121.40-4,191.92

Finding the Fourth Proportional to 7,335.92, 10,121.40 and 4,191.92

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Solution

The fourth proportional to 7,335.92, 10,121.40 and 4,191.92 is: 5,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.92 : 10,121.40 = 4,191.92 : x
  2. Step 2: Convert to fraction form
    7,335.92/10,121.40 = 4,191.92/x
  3. Step 3: Cross multiply
    7,335.92x = 10,121.40 × 4,191.92
  4. Step 4: Simplify right side
    7,335.92x = 42,428,099.09
  5. Step 5: Solve for x
    x = 42,428,099.09/7,335.92
  6. Step 6: Final answer
    x = 5,783.61

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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.