Home / 4,209.80-5,809.64-2,321.32

Finding the Fourth Proportional to 4,209.80, 5,809.64 and 2,321.32

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Solution

The fourth proportional to 4,209.80, 5,809.64 and 2,321.32 is: 3,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.80 : 5,809.64 = 2,321.32 : x
  2. Step 2: Convert to fraction form
    4,209.80/5,809.64 = 2,321.32/x
  3. Step 3: Cross multiply
    4,209.80x = 5,809.64 × 2,321.32
  4. Step 4: Simplify right side
    4,209.80x = 13,486,033.52
  5. Step 5: Solve for x
    x = 13,486,033.52/4,209.80
  6. Step 6: Final answer
    x = 3,203.49

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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.