Home / 5,247.08-7,240.70-2,889.17

Finding the Fourth Proportional to 5,247.08, 7,240.70 and 2,889.17

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Solution

The fourth proportional to 5,247.08, 7,240.70 and 2,889.17 is: 3,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.08 : 7,240.70 = 2,889.17 : x
  2. Step 2: Convert to fraction form
    5,247.08/7,240.70 = 2,889.17/x
  3. Step 3: Cross multiply
    5,247.08x = 7,240.70 × 2,889.17
  4. Step 4: Simplify right side
    5,247.08x = 20,919,562.57
  5. Step 5: Solve for x
    x = 20,919,562.57/5,247.08
  6. Step 6: Final answer
    x = 3,986.90

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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.