Home / 4,089.24-5,643.30-2,320.80

Finding the Fourth Proportional to 4,089.24, 5,643.30 and 2,320.80

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Solution

The fourth proportional to 4,089.24, 5,643.30 and 2,320.80 is: 3,202.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.24 : 5,643.30 = 2,320.80 : x
  2. Step 2: Convert to fraction form
    4,089.24/5,643.30 = 2,320.80/x
  3. Step 3: Cross multiply
    4,089.24x = 5,643.30 × 2,320.80
  4. Step 4: Simplify right side
    4,089.24x = 13,096,970.64
  5. Step 5: Solve for x
    x = 13,096,970.64/4,089.24
  6. Step 6: Final answer
    x = 3,202.79

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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.