Home / 1,819.49-2,512.94-1,229

Finding the Fourth Proportional to 1,819.49, 2,512.94 and 1,229

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Solution

The fourth proportional to 1,819.49, 2,512.94 and 1,229 is: 1,697.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.49 : 2,512.94 = 1,229 : x
  2. Step 2: Convert to fraction form
    1,819.49/2,512.94 = 1,229/x
  3. Step 3: Cross multiply
    1,819.49x = 2,512.94 × 1,229
  4. Step 4: Simplify right side
    1,819.49x = 3,088,403.26
  5. Step 5: Solve for x
    x = 3,088,403.26/1,819.49
  6. Step 6: Final answer
    x = 1,697.40

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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.