Home / 4,089.57-5,643.45-2,321.07

Finding the Fourth Proportional to 4,089.57, 5,643.45 and 2,321.07

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Solution

The fourth proportional to 4,089.57, 5,643.45 and 2,321.07 is: 3,202.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.57 : 5,643.45 = 2,321.07 : x
  2. Step 2: Convert to fraction form
    4,089.57/5,643.45 = 2,321.07/x
  3. Step 3: Cross multiply
    4,089.57x = 5,643.45 × 2,321.07
  4. Step 4: Simplify right side
    4,089.57x = 13,098,842.49
  5. Step 5: Solve for x
    x = 13,098,842.49/4,089.57
  6. Step 6: Final answer
    x = 3,202.99

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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.