Home / 1,819.55-2,512.92-1,429.55

Finding the Fourth Proportional to 1,819.55, 2,512.92 and 1,429.55

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Solution

The fourth proportional to 1,819.55, 2,512.92 and 1,429.55 is: 1,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.55 : 2,512.92 = 1,429.55 : x
  2. Step 2: Convert to fraction form
    1,819.55/2,512.92 = 1,429.55/x
  3. Step 3: Cross multiply
    1,819.55x = 2,512.92 × 1,429.55
  4. Step 4: Simplify right side
    1,819.55x = 3,592,344.79
  5. Step 5: Solve for x
    x = 3,592,344.79/1,819.55
  6. Step 6: Final answer
    x = 1,974.30

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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.