Home / 7,412.60-11,122.14-3,949

Finding the Fourth Proportional to 7,412.60, 11,122.14 and 3,949

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Solution

The fourth proportional to 7,412.60, 11,122.14 and 3,949 is: 5,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,412.60 : 11,122.14 = 3,949 : x
  2. Step 2: Convert to fraction form
    7,412.60/11,122.14 = 3,949/x
  3. Step 3: Cross multiply
    7,412.60x = 11,122.14 × 3,949
  4. Step 4: Simplify right side
    7,412.60x = 43,921,330.86
  5. Step 5: Solve for x
    x = 43,921,330.86/7,412.60
  6. Step 6: Final answer
    x = 5,925.23

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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.