Home / 2,302.09-3,178.75-1,876.78

Finding the Fourth Proportional to 2,302.09, 3,178.75 and 1,876.78

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Solution

The fourth proportional to 2,302.09, 3,178.75 and 1,876.78 is: 2,591.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,302.09 : 3,178.75 = 1,876.78 : x
  2. Step 2: Convert to fraction form
    2,302.09/3,178.75 = 1,876.78/x
  3. Step 3: Cross multiply
    2,302.09x = 3,178.75 × 1,876.78
  4. Step 4: Simplify right side
    2,302.09x = 5,965,814.43
  5. Step 5: Solve for x
    x = 5,965,814.43/2,302.09
  6. Step 6: Final answer
    x = 2,591.48

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1.5x scale

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.