Home / 2,528.76-3,788.26-1,429.76

Finding the Fourth Proportional to 2,528.76, 3,788.26 and 1,429.76

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Solution

The fourth proportional to 2,528.76, 3,788.26 and 1,429.76 is: 2,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,528.76 : 3,788.26 = 1,429.76 : x
  2. Step 2: Convert to fraction form
    2,528.76/3,788.26 = 1,429.76/x
  3. Step 3: Cross multiply
    2,528.76x = 3,788.26 × 1,429.76
  4. Step 4: Simplify right side
    2,528.76x = 5,416,302.62
  5. Step 5: Solve for x
    x = 5,416,302.62/2,528.76
  6. Step 6: Final answer
    x = 2,141.88

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1.5x scale

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.