Home / 5,245.72-7,239.12-3,007.66

Finding the Fourth Proportional to 5,245.72, 7,239.12 and 3,007.66

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Solution

The fourth proportional to 5,245.72, 7,239.12 and 3,007.66 is: 4,150.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,245.72 : 7,239.12 = 3,007.66 : x
  2. Step 2: Convert to fraction form
    5,245.72/7,239.12 = 3,007.66/x
  3. Step 3: Cross multiply
    5,245.72x = 7,239.12 × 3,007.66
  4. Step 4: Simplify right side
    5,245.72x = 21,772,811.66
  5. Step 5: Solve for x
    x = 21,772,811.66/5,245.72
  6. Step 6: Final answer
    x = 4,150.59

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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.