Home / 2,311.10-3,464.40-1,322.90

Finding the Fourth Proportional to 2,311.10, 3,464.40 and 1,322.90

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Solution

The fourth proportional to 2,311.10, 3,464.40 and 1,322.90 is: 1,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,311.10 : 3,464.40 = 1,322.90 : x
  2. Step 2: Convert to fraction form
    2,311.10/3,464.40 = 1,322.90/x
  3. Step 3: Cross multiply
    2,311.10x = 3,464.40 × 1,322.90
  4. Step 4: Simplify right side
    2,311.10x = 4,583,054.76
  5. Step 5: Solve for x
    x = 4,583,054.76/2,311.10
  6. Step 6: Final answer
    x = 1,983.06

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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.