Home / 3,147.83-4,722.18-1,392.69

Finding the Fourth Proportional to 3,147.83, 4,722.18 and 1,392.69

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Solution

The fourth proportional to 3,147.83, 4,722.18 and 1,392.69 is: 2,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.83 : 4,722.18 = 1,392.69 : x
  2. Step 2: Convert to fraction form
    3,147.83/4,722.18 = 1,392.69/x
  3. Step 3: Cross multiply
    3,147.83x = 4,722.18 × 1,392.69
  4. Step 4: Simplify right side
    3,147.83x = 6,576,525.90
  5. Step 5: Solve for x
    x = 6,576,525.90/3,147.83
  6. Step 6: Final answer
    x = 2,089.23

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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.