Home / 5,223.24-7,831.80-2,103.12

Finding the Fourth Proportional to 5,223.24, 7,831.80 and 2,103.12

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Solution

The fourth proportional to 5,223.24, 7,831.80 and 2,103.12 is: 3,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,223.24 : 7,831.80 = 2,103.12 : x
  2. Step 2: Convert to fraction form
    5,223.24/7,831.80 = 2,103.12/x
  3. Step 3: Cross multiply
    5,223.24x = 7,831.80 × 2,103.12
  4. Step 4: Simplify right side
    5,223.24x = 16,471,215.22
  5. Step 5: Solve for x
    x = 16,471,215.22/5,223.24
  6. Step 6: Final answer
    x = 3,153.45

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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.