Home / 5,221.10-7,831.24-2,447.05

Finding the Fourth Proportional to 5,221.10, 7,831.24 and 2,447.05

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Solution

The fourth proportional to 5,221.10, 7,831.24 and 2,447.05 is: 3,670.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.10 : 7,831.24 = 2,447.05 : x
  2. Step 2: Convert to fraction form
    5,221.10/7,831.24 = 2,447.05/x
  3. Step 3: Cross multiply
    5,221.10x = 7,831.24 × 2,447.05
  4. Step 4: Simplify right side
    5,221.10x = 19,163,435.84
  5. Step 5: Solve for x
    x = 19,163,435.84/5,221.10
  6. Step 6: Final answer
    x = 3,670.38

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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.