Home / 2,164.55-2,986.41-1,324.36

Finding the Fourth Proportional to 2,164.55, 2,986.41 and 1,324.36

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Solution

The fourth proportional to 2,164.55, 2,986.41 and 1,324.36 is: 1,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164.55 : 2,986.41 = 1,324.36 : x
  2. Step 2: Convert to fraction form
    2,164.55/2,986.41 = 1,324.36/x
  3. Step 3: Cross multiply
    2,164.55x = 2,986.41 × 1,324.36
  4. Step 4: Simplify right side
    2,164.55x = 3,955,074.48
  5. Step 5: Solve for x
    x = 3,955,074.48/2,164.55
  6. Step 6: Final answer
    x = 1,827.21

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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.