Home / 3,168.18-4,752.18-1,220.81

Finding the Fourth Proportional to 3,168.18, 4,752.18 and 1,220.81

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Solution

The fourth proportional to 3,168.18, 4,752.18 and 1,220.81 is: 1,831.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.18 : 4,752.18 = 1,220.81 : x
  2. Step 2: Convert to fraction form
    3,168.18/4,752.18 = 1,220.81/x
  3. Step 3: Cross multiply
    3,168.18x = 4,752.18 × 1,220.81
  4. Step 4: Simplify right side
    3,168.18x = 5,801,485.10
  5. Step 5: Solve for x
    x = 5,801,485.10/3,168.18
  6. Step 6: Final answer
    x = 1,831.17

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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.