Home / 4,986-7,465.92-3,430.80

Finding the Fourth Proportional to 4,986, 7,465.92 and 3,430.80

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Solution

The fourth proportional to 4,986, 7,465.92 and 3,430.80 is: 5,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986 : 7,465.92 = 3,430.80 : x
  2. Step 2: Convert to fraction form
    4,986/7,465.92 = 3,430.80/x
  3. Step 3: Cross multiply
    4,986x = 7,465.92 × 3,430.80
  4. Step 4: Simplify right side
    4,986x = 25,614,078.34
  5. Step 5: Solve for x
    x = 25,614,078.34/4,986
  6. Step 6: Final answer
    x = 5,137.20

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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.