Home / 3,429.36-5,164.26-3,086.70

Finding the Fourth Proportional to 3,429.36, 5,164.26 and 3,086.70

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Solution

The fourth proportional to 3,429.36, 5,164.26 and 3,086.70 is: 4,648.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,429.36 : 5,164.26 = 3,086.70 : x
  2. Step 2: Convert to fraction form
    3,429.36/5,164.26 = 3,086.70/x
  3. Step 3: Cross multiply
    3,429.36x = 5,164.26 × 3,086.70
  4. Step 4: Simplify right side
    3,429.36x = 15,940,521.34
  5. Step 5: Solve for x
    x = 15,940,521.34/3,429.36
  6. Step 6: Final answer
    x = 4,648.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.