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Finding the Fourth Proportional to 3,028.98, 4,542.64 and 837.12

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Solution

The fourth proportional to 3,028.98, 4,542.64 and 837.12 is: 1,255.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,028.98 : 4,542.64 = 837.12 : x
  2. Step 2: Convert to fraction form
    3,028.98/4,542.64 = 837.12/x
  3. Step 3: Cross multiply
    3,028.98x = 4,542.64 × 837.12
  4. Step 4: Simplify right side
    3,028.98x = 3,802,734.80
  5. Step 5: Solve for x
    x = 3,802,734.80/3,028.98
  6. Step 6: Final answer
    x = 1,255.45

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Double scale
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Similar ratio
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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.