Home / 4,209.60-5,809.28-2,321.25

Finding the Fourth Proportional to 4,209.60, 5,809.28 and 2,321.25

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Solution

The fourth proportional to 4,209.60, 5,809.28 and 2,321.25 is: 3,203.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,209.60 : 5,809.28 = 2,321.25 : x
  2. Step 2: Convert to fraction form
    4,209.60/5,809.28 = 2,321.25/x
  3. Step 3: Cross multiply
    4,209.60x = 5,809.28 × 2,321.25
  4. Step 4: Simplify right side
    4,209.60x = 13,484,791.20
  5. Step 5: Solve for x
    x = 13,484,791.20/4,209.60
  6. Step 6: Final answer
    x = 3,203.34

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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.