Home / 3,153.32-4,350.21-2,209.28

Finding the Fourth Proportional to 3,153.32, 4,350.21 and 2,209.28

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Solution

The fourth proportional to 3,153.32, 4,350.21 and 2,209.28 is: 3,047.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.32 : 4,350.21 = 2,209.28 : x
  2. Step 2: Convert to fraction form
    3,153.32/4,350.21 = 2,209.28/x
  3. Step 3: Cross multiply
    3,153.32x = 4,350.21 × 2,209.28
  4. Step 4: Simplify right side
    3,153.32x = 9,610,831.95
  5. Step 5: Solve for x
    x = 9,610,831.95/3,153.32
  6. Step 6: Final answer
    x = 3,047.85

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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.