Home / 3,725.40-5,132.94-2,780.82

Finding the Fourth Proportional to 3,725.40, 5,132.94 and 2,780.82

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Solution

The fourth proportional to 3,725.40, 5,132.94 and 2,780.82 is: 3,831.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.40 : 5,132.94 = 2,780.82 : x
  2. Step 2: Convert to fraction form
    3,725.40/5,132.94 = 2,780.82/x
  3. Step 3: Cross multiply
    3,725.40x = 5,132.94 × 2,780.82
  4. Step 4: Simplify right side
    3,725.40x = 14,273,782.21
  5. Step 5: Solve for x
    x = 14,273,782.21/3,725.40
  6. Step 6: Final answer
    x = 3,831.48

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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.