Home / 2,311.21-3,467.36-1,581.13

Finding the Fourth Proportional to 2,311.21, 3,467.36 and 1,581.13

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Solution

The fourth proportional to 2,311.21, 3,467.36 and 1,581.13 is: 2,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.21 : 3,467.36 = 1,581.13 : x
  2. Step 2: Convert to fraction form
    2,311.21/3,467.36 = 1,581.13/x
  3. Step 3: Cross multiply
    2,311.21x = 3,467.36 × 1,581.13
  4. Step 4: Simplify right side
    2,311.21x = 5,482,346.92
  5. Step 5: Solve for x
    x = 5,482,346.92/2,311.21
  6. Step 6: Final answer
    x = 2,372.07

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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.