Home / 5,406.35-8,109.32-1,708.97

Finding the Fourth Proportional to 5,406.35, 8,109.32 and 1,708.97

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Solution

The fourth proportional to 5,406.35, 8,109.32 and 1,708.97 is: 2,563.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,406.35 : 8,109.32 = 1,708.97 : x
  2. Step 2: Convert to fraction form
    5,406.35/8,109.32 = 1,708.97/x
  3. Step 3: Cross multiply
    5,406.35x = 8,109.32 × 1,708.97
  4. Step 4: Simplify right side
    5,406.35x = 13,858,535.51
  5. Step 5: Solve for x
    x = 13,858,535.51/5,406.35
  6. Step 6: Final answer
    x = 2,563.38

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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.