Home / 4,089.58-5,643.66-2,321.20

Finding the Fourth Proportional to 4,089.58, 5,643.66 and 2,321.20

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Solution

The fourth proportional to 4,089.58, 5,643.66 and 2,321.20 is: 3,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.58 : 5,643.66 = 2,321.20 : x
  2. Step 2: Convert to fraction form
    4,089.58/5,643.66 = 2,321.20/x
  3. Step 3: Cross multiply
    4,089.58x = 5,643.66 × 2,321.20
  4. Step 4: Simplify right side
    4,089.58x = 13,100,063.59
  5. Step 5: Solve for x
    x = 13,100,063.59/4,089.58
  6. Step 6: Final answer
    x = 3,203.28

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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.