Home / 3,113.24-4,673.10-2,129.90

Finding the Fourth Proportional to 3,113.24, 4,673.10 and 2,129.90

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Solution

The fourth proportional to 3,113.24, 4,673.10 and 2,129.90 is: 3,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.24 : 4,673.10 = 2,129.90 : x
  2. Step 2: Convert to fraction form
    3,113.24/4,673.10 = 2,129.90/x
  3. Step 3: Cross multiply
    3,113.24x = 4,673.10 × 2,129.90
  4. Step 4: Simplify right side
    3,113.24x = 9,953,235.69
  5. Step 5: Solve for x
    x = 9,953,235.69/3,113.24
  6. Step 6: Final answer
    x = 3,197.07

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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.