Home / 3,210.30-4,803.30-2,116.80

Finding the Fourth Proportional to 3,210.30, 4,803.30 and 2,116.80

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Solution

The fourth proportional to 3,210.30, 4,803.30 and 2,116.80 is: 3,167.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,210.30 : 4,803.30 = 2,116.80 : x
  2. Step 2: Convert to fraction form
    3,210.30/4,803.30 = 2,116.80/x
  3. Step 3: Cross multiply
    3,210.30x = 4,803.30 × 2,116.80
  4. Step 4: Simplify right side
    3,210.30x = 10,167,625.44
  5. Step 5: Solve for x
    x = 10,167,625.44/3,210.30
  6. Step 6: Final answer
    x = 3,167.19

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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.