Home / 7,336.24-10,123.92-3,979

Finding the Fourth Proportional to 7,336.24, 10,123.92 and 3,979

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Solution

The fourth proportional to 7,336.24, 10,123.92 and 3,979 is: 5,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,336.24 : 10,123.92 = 3,979 : x
  2. Step 2: Convert to fraction form
    7,336.24/10,123.92 = 3,979/x
  3. Step 3: Cross multiply
    7,336.24x = 10,123.92 × 3,979
  4. Step 4: Simplify right side
    7,336.24x = 40,283,077.68
  5. Step 5: Solve for x
    x = 40,283,077.68/7,336.24
  6. Step 6: Final answer
    x = 5,490.97

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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.