Home / 2,208.11-3,047.07-1,357.69

Finding the Fourth Proportional to 2,208.11, 3,047.07 and 1,357.69

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Solution

The fourth proportional to 2,208.11, 3,047.07 and 1,357.69 is: 1,873.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.11 : 3,047.07 = 1,357.69 : x
  2. Step 2: Convert to fraction form
    2,208.11/3,047.07 = 1,357.69/x
  3. Step 3: Cross multiply
    2,208.11x = 3,047.07 × 1,357.69
  4. Step 4: Simplify right side
    2,208.11x = 4,136,963.45
  5. Step 5: Solve for x
    x = 4,136,963.45/2,208.11
  6. Step 6: Final answer
    x = 1,873.53

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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.