Home / 2,208.78-3,313.26-1,283.76

Finding the Fourth Proportional to 2,208.78, 3,313.26 and 1,283.76

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Solution

The fourth proportional to 2,208.78, 3,313.26 and 1,283.76 is: 1,925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.78 : 3,313.26 = 1,283.76 : x
  2. Step 2: Convert to fraction form
    2,208.78/3,313.26 = 1,283.76/x
  3. Step 3: Cross multiply
    2,208.78x = 3,313.26 × 1,283.76
  4. Step 4: Simplify right side
    2,208.78x = 4,253,430.66
  5. Step 5: Solve for x
    x = 4,253,430.66/2,208.78
  6. Step 6: Final answer
    x = 1,925.69

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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.