Home / 2,166.68-2,989.85-1,327.04

Finding the Fourth Proportional to 2,166.68, 2,989.85 and 1,327.04

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Solution

The fourth proportional to 2,166.68, 2,989.85 and 1,327.04 is: 1,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166.68 : 2,989.85 = 1,327.04 : x
  2. Step 2: Convert to fraction form
    2,166.68/2,989.85 = 1,327.04/x
  3. Step 3: Cross multiply
    2,166.68x = 2,989.85 × 1,327.04
  4. Step 4: Simplify right side
    2,166.68x = 3,967,650.54
  5. Step 5: Solve for x
    x = 3,967,650.54/2,166.68
  6. Step 6: Final answer
    x = 1,831.21

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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.