Home / 5,221.24-7,205.34-2,831.23

Finding the Fourth Proportional to 5,221.24, 7,205.34 and 2,831.23

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Solution

The fourth proportional to 5,221.24, 7,205.34 and 2,831.23 is: 3,907.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.24 : 7,205.34 = 2,831.23 : x
  2. Step 2: Convert to fraction form
    5,221.24/7,205.34 = 2,831.23/x
  3. Step 3: Cross multiply
    5,221.24x = 7,205.34 × 2,831.23
  4. Step 4: Simplify right side
    5,221.24x = 20,399,974.77
  5. Step 5: Solve for x
    x = 20,399,974.77/5,221.24
  6. Step 6: Final answer
    x = 3,907.11

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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.