Home / 5,238.64-7,860.66-2,318.86

Finding the Fourth Proportional to 5,238.64, 7,860.66 and 2,318.86

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Solution

The fourth proportional to 5,238.64, 7,860.66 and 2,318.86 is: 3,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.64 : 7,860.66 = 2,318.86 : x
  2. Step 2: Convert to fraction form
    5,238.64/7,860.66 = 2,318.86/x
  3. Step 3: Cross multiply
    5,238.64x = 7,860.66 × 2,318.86
  4. Step 4: Simplify right side
    5,238.64x = 18,227,770.05
  5. Step 5: Solve for x
    x = 18,227,770.05/5,238.64
  6. Step 6: Final answer
    x = 3,479.49

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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.