Home / 7,409.60-11,117.64-3,946

Finding the Fourth Proportional to 7,409.60, 11,117.64 and 3,946

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Solution

The fourth proportional to 7,409.60, 11,117.64 and 3,946 is: 5,920.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.60 : 11,117.64 = 3,946 : x
  2. Step 2: Convert to fraction form
    7,409.60/11,117.64 = 3,946/x
  3. Step 3: Cross multiply
    7,409.60x = 11,117.64 × 3,946
  4. Step 4: Simplify right side
    7,409.60x = 43,870,207.44
  5. Step 5: Solve for x
    x = 43,870,207.44/7,409.60
  6. Step 6: Final answer
    x = 5,920.73

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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.