Home / 3,187.06-4,782.30-2,144.50

Finding the Fourth Proportional to 3,187.06, 4,782.30 and 2,144.50

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Solution

The fourth proportional to 3,187.06, 4,782.30 and 2,144.50 is: 3,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.06 : 4,782.30 = 2,144.50 : x
  2. Step 2: Convert to fraction form
    3,187.06/4,782.30 = 2,144.50/x
  3. Step 3: Cross multiply
    3,187.06x = 4,782.30 × 2,144.50
  4. Step 4: Simplify right side
    3,187.06x = 10,255,642.35
  5. Step 5: Solve for x
    x = 10,255,642.35/3,187.06
  6. Step 6: Final answer
    x = 3,217.90

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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.