Home / 5,222.80-7,831.08-2,104.24

Finding the Fourth Proportional to 5,222.80, 7,831.08 and 2,104.24

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Solution

The fourth proportional to 5,222.80, 7,831.08 and 2,104.24 is: 3,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,222.80 : 7,831.08 = 2,104.24 : x
  2. Step 2: Convert to fraction form
    5,222.80/7,831.08 = 2,104.24/x
  3. Step 3: Cross multiply
    5,222.80x = 7,831.08 × 2,104.24
  4. Step 4: Simplify right side
    5,222.80x = 16,478,471.78
  5. Step 5: Solve for x
    x = 16,478,471.78/5,222.80
  6. Step 6: Final answer
    x = 3,155.10

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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.