Home / 5,161.89-7,124.45-3,065.61

Finding the Fourth Proportional to 5,161.89, 7,124.45 and 3,065.61

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Solution

The fourth proportional to 5,161.89, 7,124.45 and 3,065.61 is: 4,231.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,161.89 : 7,124.45 = 3,065.61 : x
  2. Step 2: Convert to fraction form
    5,161.89/7,124.45 = 3,065.61/x
  3. Step 3: Cross multiply
    5,161.89x = 7,124.45 × 3,065.61
  4. Step 4: Simplify right side
    5,161.89x = 21,840,769.84
  5. Step 5: Solve for x
    x = 21,840,769.84/5,161.89
  6. Step 6: Final answer
    x = 4,231.16

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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.