Home / 5,145.69-7,720.38-2,023.97

Finding the Fourth Proportional to 5,145.69, 7,720.38 and 2,023.97

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Solution

The fourth proportional to 5,145.69, 7,720.38 and 2,023.97 is: 3,036.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.69 : 7,720.38 = 2,023.97 : x
  2. Step 2: Convert to fraction form
    5,145.69/7,720.38 = 2,023.97/x
  3. Step 3: Cross multiply
    5,145.69x = 7,720.38 × 2,023.97
  4. Step 4: Simplify right side
    5,145.69x = 15,625,768.79
  5. Step 5: Solve for x
    x = 15,625,768.79/5,145.69
  6. Step 6: Final answer
    x = 3,036.67

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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.