Home / 6,572.78-9,859.18-2,190.58

Finding the Fourth Proportional to 6,572.78, 9,859.18 and 2,190.58

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Solution

The fourth proportional to 6,572.78, 9,859.18 and 2,190.58 is: 3,285.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,572.78 : 9,859.18 = 2,190.58 : x
  2. Step 2: Convert to fraction form
    6,572.78/9,859.18 = 2,190.58/x
  3. Step 3: Cross multiply
    6,572.78x = 9,859.18 × 2,190.58
  4. Step 4: Simplify right side
    6,572.78x = 21,597,322.52
  5. Step 5: Solve for x
    x = 21,597,322.52/6,572.78
  6. Step 6: Final answer
    x = 3,285.87

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Double scale
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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.