Home / 4,040.38-5,578.86-3,154.63

Finding the Fourth Proportional to 4,040.38, 5,578.86 and 3,154.63

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Solution

The fourth proportional to 4,040.38, 5,578.86 and 3,154.63 is: 4,355.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040.38 : 5,578.86 = 3,154.63 : x
  2. Step 2: Convert to fraction form
    4,040.38/5,578.86 = 3,154.63/x
  3. Step 3: Cross multiply
    4,040.38x = 5,578.86 × 3,154.63
  4. Step 4: Simplify right side
    4,040.38x = 17,599,239.12
  5. Step 5: Solve for x
    x = 17,599,239.12/4,040.38
  6. Step 6: Final answer
    x = 4,355.84

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Half scale
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Double scale
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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.