Home / 5,101.21-7,651.91-1,403.42

Finding the Fourth Proportional to 5,101.21, 7,651.91 and 1,403.42

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Solution

The fourth proportional to 5,101.21, 7,651.91 and 1,403.42 is: 2,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.21 : 7,651.91 = 1,403.42 : x
  2. Step 2: Convert to fraction form
    5,101.21/7,651.91 = 1,403.42/x
  3. Step 3: Cross multiply
    5,101.21x = 7,651.91 × 1,403.42
  4. Step 4: Simplify right side
    5,101.21x = 10,738,836.52
  5. Step 5: Solve for x
    x = 10,738,836.52/5,101.21
  6. Step 6: Final answer
    x = 2,105.16

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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.