Home / 3,930.40-5,890.48-3,002.52

Finding the Fourth Proportional to 3,930.40, 5,890.48 and 3,002.52

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Solution

The fourth proportional to 3,930.40, 5,890.48 and 3,002.52 is: 4,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930.40 : 5,890.48 = 3,002.52 : x
  2. Step 2: Convert to fraction form
    3,930.40/5,890.48 = 3,002.52/x
  3. Step 3: Cross multiply
    3,930.40x = 5,890.48 × 3,002.52
  4. Step 4: Simplify right side
    3,930.40x = 17,686,284.01
  5. Step 5: Solve for x
    x = 17,686,284.01/3,930.40
  6. Step 6: Final answer
    x = 4,499.87

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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.