Home / 5,247.09-7,240.65-2,889.24

Finding the Fourth Proportional to 5,247.09, 7,240.65 and 2,889.24

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Solution

The fourth proportional to 5,247.09, 7,240.65 and 2,889.24 is: 3,986.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.09 : 7,240.65 = 2,889.24 : x
  2. Step 2: Convert to fraction form
    5,247.09/7,240.65 = 2,889.24/x
  3. Step 3: Cross multiply
    5,247.09x = 7,240.65 × 2,889.24
  4. Step 4: Simplify right side
    5,247.09x = 20,919,975.61
  5. Step 5: Solve for x
    x = 20,919,975.61/5,247.09
  6. Step 6: Final answer
    x = 3,986.97

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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.