Home / 3,137.61-4,325.22-2,018.19

Finding the Fourth Proportional to 3,137.61, 4,325.22 and 2,018.19

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Solution

The fourth proportional to 3,137.61, 4,325.22 and 2,018.19 is: 2,782.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.61 : 4,325.22 = 2,018.19 : x
  2. Step 2: Convert to fraction form
    3,137.61/4,325.22 = 2,018.19/x
  3. Step 3: Cross multiply
    3,137.61x = 4,325.22 × 2,018.19
  4. Step 4: Simplify right side
    3,137.61x = 8,729,115.75
  5. Step 5: Solve for x
    x = 8,729,115.75/3,137.61
  6. Step 6: Final answer
    x = 2,782.09

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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.