Home / 2,150.57-2,968.36-1,255.07

Finding the Fourth Proportional to 2,150.57, 2,968.36 and 1,255.07

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Solution

The fourth proportional to 2,150.57, 2,968.36 and 1,255.07 is: 1,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,150.57 : 2,968.36 = 1,255.07 : x
  2. Step 2: Convert to fraction form
    2,150.57/2,968.36 = 1,255.07/x
  3. Step 3: Cross multiply
    2,150.57x = 2,968.36 × 1,255.07
  4. Step 4: Simplify right side
    2,150.57x = 3,725,503.87
  5. Step 5: Solve for x
    x = 3,725,503.87/2,150.57
  6. Step 6: Final answer
    x = 1,732.33

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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.