Home / 2,268.34-3,128-2,136.05

Finding the Fourth Proportional to 2,268.34, 3,128 and 2,136.05

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Solution

The fourth proportional to 2,268.34, 3,128 and 2,136.05 is: 2,945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.34 : 3,128 = 2,136.05 : x
  2. Step 2: Convert to fraction form
    2,268.34/3,128 = 2,136.05/x
  3. Step 3: Cross multiply
    2,268.34x = 3,128 × 2,136.05
  4. Step 4: Simplify right side
    2,268.34x = 6,681,564.40
  5. Step 5: Solve for x
    x = 6,681,564.40/2,268.34
  6. Step 6: Final answer
    x = 2,945.58

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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.