Home / 3,206.22-4,424.61-1,790

Finding the Fourth Proportional to 3,206.22, 4,424.61 and 1,790

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Solution

The fourth proportional to 3,206.22, 4,424.61 and 1,790 is: 2,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.22 : 4,424.61 = 1,790 : x
  2. Step 2: Convert to fraction form
    3,206.22/4,424.61 = 1,790/x
  3. Step 3: Cross multiply
    3,206.22x = 4,424.61 × 1,790
  4. Step 4: Simplify right side
    3,206.22x = 7,920,051.90
  5. Step 5: Solve for x
    x = 7,920,051.90/3,206.22
  6. Step 6: Final answer
    x = 2,470.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.