Home / 3,394.09-5,091.14-928.81

Finding the Fourth Proportional to 3,394.09, 5,091.14 and 928.81

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Solution

The fourth proportional to 3,394.09, 5,091.14 and 928.81 is: 1,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.09 : 5,091.14 = 928.81 : x
  2. Step 2: Convert to fraction form
    3,394.09/5,091.14 = 928.81/x
  3. Step 3: Cross multiply
    3,394.09x = 5,091.14 × 928.81
  4. Step 4: Simplify right side
    3,394.09x = 4,728,701.74
  5. Step 5: Solve for x
    x = 4,728,701.74/3,394.09
  6. Step 6: Final answer
    x = 1,393.22

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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.