Home / 2,208.65-3,047.99-1,213.95

Finding the Fourth Proportional to 2,208.65, 3,047.99 and 1,213.95

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Solution

The fourth proportional to 2,208.65, 3,047.99 and 1,213.95 is: 1,675.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.65 : 3,047.99 = 1,213.95 : x
  2. Step 2: Convert to fraction form
    2,208.65/3,047.99 = 1,213.95/x
  3. Step 3: Cross multiply
    2,208.65x = 3,047.99 × 1,213.95
  4. Step 4: Simplify right side
    2,208.65x = 3,700,107.46
  5. Step 5: Solve for x
    x = 3,700,107.46/2,208.65
  6. Step 6: Final answer
    x = 1,675.28

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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.