Home / 3,117.45-4,670.10-2,133.30

Finding the Fourth Proportional to 3,117.45, 4,670.10 and 2,133.30

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Solution

The fourth proportional to 3,117.45, 4,670.10 and 2,133.30 is: 3,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,117.45 : 4,670.10 = 2,133.30 : x
  2. Step 2: Convert to fraction form
    3,117.45/4,670.10 = 2,133.30/x
  3. Step 3: Cross multiply
    3,117.45x = 4,670.10 × 2,133.30
  4. Step 4: Simplify right side
    3,117.45x = 9,962,724.33
  5. Step 5: Solve for x
    x = 9,962,724.33/3,117.45
  6. Step 6: Final answer
    x = 3,195.79

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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.