Home / 3,105.36-4,285.52-1,708.16

Finding the Fourth Proportional to 3,105.36, 4,285.52 and 1,708.16

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Solution

The fourth proportional to 3,105.36, 4,285.52 and 1,708.16 is: 2,357.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,105.36 : 4,285.52 = 1,708.16 : x
  2. Step 2: Convert to fraction form
    3,105.36/4,285.52 = 1,708.16/x
  3. Step 3: Cross multiply
    3,105.36x = 4,285.52 × 1,708.16
  4. Step 4: Simplify right side
    3,105.36x = 7,320,353.84
  5. Step 5: Solve for x
    x = 7,320,353.84/3,105.36
  6. Step 6: Final answer
    x = 2,357.33

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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.