Home / 3,221.48-4,448.52-2,434.16

Finding the Fourth Proportional to 3,221.48, 4,448.52 and 2,434.16

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Solution

The fourth proportional to 3,221.48, 4,448.52 and 2,434.16 is: 3,361.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.48 : 4,448.52 = 2,434.16 : x
  2. Step 2: Convert to fraction form
    3,221.48/4,448.52 = 2,434.16/x
  3. Step 3: Cross multiply
    3,221.48x = 4,448.52 × 2,434.16
  4. Step 4: Simplify right side
    3,221.48x = 10,828,409.44
  5. Step 5: Solve for x
    x = 10,828,409.44/3,221.48
  6. Step 6: Final answer
    x = 3,361.32

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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.