Home / 3,216.90-4,821.20-3,182.07

Finding the Fourth Proportional to 3,216.90, 4,821.20 and 3,182.07

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Solution

The fourth proportional to 3,216.90, 4,821.20 and 3,182.07 is: 4,769.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,216.90 : 4,821.20 = 3,182.07 : x
  2. Step 2: Convert to fraction form
    3,216.90/4,821.20 = 3,182.07/x
  3. Step 3: Cross multiply
    3,216.90x = 4,821.20 × 3,182.07
  4. Step 4: Simplify right side
    3,216.90x = 15,341,395.88
  5. Step 5: Solve for x
    x = 15,341,395.88/3,216.90
  6. Step 6: Final answer
    x = 4,769.00

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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.