Home / 2,961.35-4,086.64-1,685.23

Finding the Fourth Proportional to 2,961.35, 4,086.64 and 1,685.23

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Solution

The fourth proportional to 2,961.35, 4,086.64 and 1,685.23 is: 2,325.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.35 : 4,086.64 = 1,685.23 : x
  2. Step 2: Convert to fraction form
    2,961.35/4,086.64 = 1,685.23/x
  3. Step 3: Cross multiply
    2,961.35x = 4,086.64 × 1,685.23
  4. Step 4: Simplify right side
    2,961.35x = 6,886,919.90
  5. Step 5: Solve for x
    x = 6,886,919.90/2,961.35
  6. Step 6: Final answer
    x = 2,325.61

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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.