Home / 3,394.41-5,091.38-929.25

Finding the Fourth Proportional to 3,394.41, 5,091.38 and 929.25

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Solution

The fourth proportional to 3,394.41, 5,091.38 and 929.25 is: 1,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.41 : 5,091.38 = 929.25 : x
  2. Step 2: Convert to fraction form
    3,394.41/5,091.38 = 929.25/x
  3. Step 3: Cross multiply
    3,394.41x = 5,091.38 × 929.25
  4. Step 4: Simplify right side
    3,394.41x = 4,731,152.00
  5. Step 5: Solve for x
    x = 4,731,152.00/3,394.41
  6. Step 6: Final answer
    x = 1,393.81

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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.