Home / 7,939.24-11,905.01-2,391.55

Finding the Fourth Proportional to 7,939.24, 11,905.01 and 2,391.55

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Solution

The fourth proportional to 7,939.24, 11,905.01 and 2,391.55 is: 3,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.24 : 11,905.01 = 2,391.55 : x
  2. Step 2: Convert to fraction form
    7,939.24/11,905.01 = 2,391.55/x
  3. Step 3: Cross multiply
    7,939.24x = 11,905.01 × 2,391.55
  4. Step 4: Simplify right side
    7,939.24x = 28,471,393.91
  5. Step 5: Solve for x
    x = 28,471,393.91/7,939.24
  6. Step 6: Final answer
    x = 3,586.16

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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.