Home / 7,439.36-11,160.12-2,245.64

Finding the Fourth Proportional to 7,439.36, 11,160.12 and 2,245.64

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Solution

The fourth proportional to 7,439.36, 11,160.12 and 2,245.64 is: 3,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.36 : 11,160.12 = 2,245.64 : x
  2. Step 2: Convert to fraction form
    7,439.36/11,160.12 = 2,245.64/x
  3. Step 3: Cross multiply
    7,439.36x = 11,160.12 × 2,245.64
  4. Step 4: Simplify right side
    7,439.36x = 25,061,611.88
  5. Step 5: Solve for x
    x = 25,061,611.88/7,439.36
  6. Step 6: Final answer
    x = 3,368.79

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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.