Home / 7,524.84-11,286.36-1,978.61

Finding the Fourth Proportional to 7,524.84, 11,286.36 and 1,978.61

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Solution

The fourth proportional to 7,524.84, 11,286.36 and 1,978.61 is: 2,967.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,524.84 : 11,286.36 = 1,978.61 : x
  2. Step 2: Convert to fraction form
    7,524.84/11,286.36 = 1,978.61/x
  3. Step 3: Cross multiply
    7,524.84x = 11,286.36 × 1,978.61
  4. Step 4: Simplify right side
    7,524.84x = 22,331,353.49
  5. Step 5: Solve for x
    x = 22,331,353.49/7,524.84
  6. Step 6: Final answer
    x = 2,967.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.