Home / 3,145.47-4,339.62-2,202.77

Finding the Fourth Proportional to 3,145.47, 4,339.62 and 2,202.77

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Solution

The fourth proportional to 3,145.47, 4,339.62 and 2,202.77 is: 3,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.47 : 4,339.62 = 2,202.77 : x
  2. Step 2: Convert to fraction form
    3,145.47/4,339.62 = 2,202.77/x
  3. Step 3: Cross multiply
    3,145.47x = 4,339.62 × 2,202.77
  4. Step 4: Simplify right side
    3,145.47x = 9,559,163.05
  5. Step 5: Solve for x
    x = 9,559,163.05/3,145.47
  6. Step 6: Final answer
    x = 3,039.03

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Half scale
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Double scale
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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.