Home / 3,967.50-5,474.93-2,174.65

Finding the Fourth Proportional to 3,967.50, 5,474.93 and 2,174.65

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Solution

The fourth proportional to 3,967.50, 5,474.93 and 2,174.65 is: 3,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.50 : 5,474.93 = 2,174.65 : x
  2. Step 2: Convert to fraction form
    3,967.50/5,474.93 = 2,174.65/x
  3. Step 3: Cross multiply
    3,967.50x = 5,474.93 × 2,174.65
  4. Step 4: Simplify right side
    3,967.50x = 11,906,056.52
  5. Step 5: Solve for x
    x = 11,906,056.52/3,967.50
  6. Step 6: Final answer
    x = 3,000.90

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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.