Home / 5,330.61-7,986.20-3,928.50

Finding the Fourth Proportional to 5,330.61, 7,986.20 and 3,928.50

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Solution

The fourth proportional to 5,330.61, 7,986.20 and 3,928.50 is: 5,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,330.61 : 7,986.20 = 3,928.50 : x
  2. Step 2: Convert to fraction form
    5,330.61/7,986.20 = 3,928.50/x
  3. Step 3: Cross multiply
    5,330.61x = 7,986.20 × 3,928.50
  4. Step 4: Simplify right side
    5,330.61x = 31,373,767.06
  5. Step 5: Solve for x
    x = 31,373,767.06/5,330.61
  6. Step 6: Final answer
    x = 5,885.59

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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.