Home / 3,422.15-5,132.97-1,661.72

Finding the Fourth Proportional to 3,422.15, 5,132.97 and 1,661.72

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Solution

The fourth proportional to 3,422.15, 5,132.97 and 1,661.72 is: 2,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.15 : 5,132.97 = 1,661.72 : x
  2. Step 2: Convert to fraction form
    3,422.15/5,132.97 = 1,661.72/x
  3. Step 3: Cross multiply
    3,422.15x = 5,132.97 × 1,661.72
  4. Step 4: Simplify right side
    3,422.15x = 8,529,533.24
  5. Step 5: Solve for x
    x = 8,529,533.24/3,422.15
  6. Step 6: Final answer
    x = 2,492.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.