Home / 2,525.70-3,788.55-1,139.69

Finding the Fourth Proportional to 2,525.70, 3,788.55 and 1,139.69

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Solution

The fourth proportional to 2,525.70, 3,788.55 and 1,139.69 is: 1,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.70 : 3,788.55 = 1,139.69 : x
  2. Step 2: Convert to fraction form
    2,525.70/3,788.55 = 1,139.69/x
  3. Step 3: Cross multiply
    2,525.70x = 3,788.55 × 1,139.69
  4. Step 4: Simplify right side
    2,525.70x = 4,317,772.55
  5. Step 5: Solve for x
    x = 4,317,772.55/2,525.70
  6. Step 6: Final answer
    x = 1,709.54

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Similar ratio
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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.