Home / 7,119.64-10,679.48-2,439.69

Finding the Fourth Proportional to 7,119.64, 10,679.48 and 2,439.69

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Solution

The fourth proportional to 7,119.64, 10,679.48 and 2,439.69 is: 3,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,119.64 : 10,679.48 = 2,439.69 : x
  2. Step 2: Convert to fraction form
    7,119.64/10,679.48 = 2,439.69/x
  3. Step 3: Cross multiply
    7,119.64x = 10,679.48 × 2,439.69
  4. Step 4: Simplify right side
    7,119.64x = 26,054,608.36
  5. Step 5: Solve for x
    x = 26,054,608.36/7,119.64
  6. Step 6: Final answer
    x = 3,659.54

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Similar ratio
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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.