Home / 2,132.30-2,945.40-1,738.64

Finding the Fourth Proportional to 2,132.30, 2,945.40 and 1,738.64

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Solution

The fourth proportional to 2,132.30, 2,945.40 and 1,738.64 is: 2,401.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132.30 : 2,945.40 = 1,738.64 : x
  2. Step 2: Convert to fraction form
    2,132.30/2,945.40 = 1,738.64/x
  3. Step 3: Cross multiply
    2,132.30x = 2,945.40 × 1,738.64
  4. Step 4: Simplify right side
    2,132.30x = 5,120,990.26
  5. Step 5: Solve for x
    x = 5,120,990.26/2,132.30
  6. Step 6: Final answer
    x = 2,401.63

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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.