Home / 5,290.22-7,935.20-1,394.62

Finding the Fourth Proportional to 5,290.22, 7,935.20 and 1,394.62

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Solution

The fourth proportional to 5,290.22, 7,935.20 and 1,394.62 is: 2,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.22 : 7,935.20 = 1,394.62 : x
  2. Step 2: Convert to fraction form
    5,290.22/7,935.20 = 1,394.62/x
  3. Step 3: Cross multiply
    5,290.22x = 7,935.20 × 1,394.62
  4. Step 4: Simplify right side
    5,290.22x = 11,066,588.62
  5. Step 5: Solve for x
    x = 11,066,588.62/5,290.22
  6. Step 6: Final answer
    x = 2,091.90

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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.