Home / 5,290.05-7,934.45-1,394.76

Finding the Fourth Proportional to 5,290.05, 7,934.45 and 1,394.76

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Solution

The fourth proportional to 5,290.05, 7,934.45 and 1,394.76 is: 2,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,290.05 : 7,934.45 = 1,394.76 : x
  2. Step 2: Convert to fraction form
    5,290.05/7,934.45 = 1,394.76/x
  3. Step 3: Cross multiply
    5,290.05x = 7,934.45 × 1,394.76
  4. Step 4: Simplify right side
    5,290.05x = 11,066,653.48
  5. Step 5: Solve for x
    x = 11,066,653.48/5,290.05
  6. Step 6: Final answer
    x = 2,091.98

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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.