Home / 3,106.36-4,659.36-1,720.36

Finding the Fourth Proportional to 3,106.36, 4,659.36 and 1,720.36

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Solution

The fourth proportional to 3,106.36, 4,659.36 and 1,720.36 is: 2,580.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.36 : 4,659.36 = 1,720.36 : x
  2. Step 2: Convert to fraction form
    3,106.36/4,659.36 = 1,720.36/x
  3. Step 3: Cross multiply
    3,106.36x = 4,659.36 × 1,720.36
  4. Step 4: Simplify right side
    3,106.36x = 8,015,776.57
  5. Step 5: Solve for x
    x = 8,015,776.57/3,106.36
  6. Step 6: Final answer
    x = 2,580.44

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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.