Home / 2,399.42-3,311.08-1,337.12

Finding the Fourth Proportional to 2,399.42, 3,311.08 and 1,337.12

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Solution

The fourth proportional to 2,399.42, 3,311.08 and 1,337.12 is: 1,845.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.42 : 3,311.08 = 1,337.12 : x
  2. Step 2: Convert to fraction form
    2,399.42/3,311.08 = 1,337.12/x
  3. Step 3: Cross multiply
    2,399.42x = 3,311.08 × 1,337.12
  4. Step 4: Simplify right side
    2,399.42x = 4,427,311.29
  5. Step 5: Solve for x
    x = 4,427,311.29/2,399.42
  6. Step 6: Final answer
    x = 1,845.16

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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.