Home / 2,239.96-3,086.10-1,679.55

Finding the Fourth Proportional to 2,239.96, 3,086.10 and 1,679.55

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Solution

The fourth proportional to 2,239.96, 3,086.10 and 1,679.55 is: 2,314.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.96 : 3,086.10 = 1,679.55 : x
  2. Step 2: Convert to fraction form
    2,239.96/3,086.10 = 1,679.55/x
  3. Step 3: Cross multiply
    2,239.96x = 3,086.10 × 1,679.55
  4. Step 4: Simplify right side
    2,239.96x = 5,183,259.26
  5. Step 5: Solve for x
    x = 5,183,259.26/2,239.96
  6. Step 6: Final answer
    x = 2,314.00

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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.