Home / 2,572.38-3,858.57-1,806.30

Finding the Fourth Proportional to 2,572.38, 3,858.57 and 1,806.30

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Solution

The fourth proportional to 2,572.38, 3,858.57 and 1,806.30 is: 2,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.38 : 3,858.57 = 1,806.30 : x
  2. Step 2: Convert to fraction form
    2,572.38/3,858.57 = 1,806.30/x
  3. Step 3: Cross multiply
    2,572.38x = 3,858.57 × 1,806.30
  4. Step 4: Simplify right side
    2,572.38x = 6,969,734.99
  5. Step 5: Solve for x
    x = 6,969,734.99/2,572.38
  6. Step 6: Final answer
    x = 2,709.45

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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.