Home / 7,407.60-11,110.44-2,790

Finding the Fourth Proportional to 7,407.60, 11,110.44 and 2,790

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Solution

The fourth proportional to 7,407.60, 11,110.44 and 2,790 is: 4,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.60 : 11,110.44 = 2,790 : x
  2. Step 2: Convert to fraction form
    7,407.60/11,110.44 = 2,790/x
  3. Step 3: Cross multiply
    7,407.60x = 11,110.44 × 2,790
  4. Step 4: Simplify right side
    7,407.60x = 30,998,127.60
  5. Step 5: Solve for x
    x = 30,998,127.60/7,407.60
  6. Step 6: Final answer
    x = 4,184.64

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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.