Home / 2,144.37-2,960.75-1,672.79

Finding the Fourth Proportional to 2,144.37, 2,960.75 and 1,672.79

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Solution

The fourth proportional to 2,144.37, 2,960.75 and 1,672.79 is: 2,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.37 : 2,960.75 = 1,672.79 : x
  2. Step 2: Convert to fraction form
    2,144.37/2,960.75 = 1,672.79/x
  3. Step 3: Cross multiply
    2,144.37x = 2,960.75 × 1,672.79
  4. Step 4: Simplify right side
    2,144.37x = 4,952,702.37
  5. Step 5: Solve for x
    x = 4,952,702.37/2,144.37
  6. Step 6: Final answer
    x = 2,309.63

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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.