Home / 2,808.06-4,212.10-1,653

Finding the Fourth Proportional to 2,808.06, 4,212.10 and 1,653

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Solution

The fourth proportional to 2,808.06, 4,212.10 and 1,653 is: 2,479.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,808.06 : 4,212.10 = 1,653 : x
  2. Step 2: Convert to fraction form
    2,808.06/4,212.10 = 1,653/x
  3. Step 3: Cross multiply
    2,808.06x = 4,212.10 × 1,653
  4. Step 4: Simplify right side
    2,808.06x = 6,962,601.30
  5. Step 5: Solve for x
    x = 6,962,601.30/2,808.06
  6. Step 6: Final answer
    x = 2,479.51

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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.