Home / 3,140.94-4,712.22-2,218.32

Finding the Fourth Proportional to 3,140.94, 4,712.22 and 2,218.32

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Solution

The fourth proportional to 3,140.94, 4,712.22 and 2,218.32 is: 3,328.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.94 : 4,712.22 = 2,218.32 : x
  2. Step 2: Convert to fraction form
    3,140.94/4,712.22 = 2,218.32/x
  3. Step 3: Cross multiply
    3,140.94x = 4,712.22 × 2,218.32
  4. Step 4: Simplify right side
    3,140.94x = 10,453,211.87
  5. Step 5: Solve for x
    x = 10,453,211.87/3,140.94
  6. Step 6: Final answer
    x = 3,328.05

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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.