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Finding the Fourth Proportional to 3,510, 4,843.57 and 1,938.08

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Solution

The fourth proportional to 3,510, 4,843.57 and 1,938.08 is: 2,674.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510 : 4,843.57 = 1,938.08 : x
  2. Step 2: Convert to fraction form
    3,510/4,843.57 = 1,938.08/x
  3. Step 3: Cross multiply
    3,510x = 4,843.57 × 1,938.08
  4. Step 4: Simplify right side
    3,510x = 9,387,226.15
  5. Step 5: Solve for x
    x = 9,387,226.15/3,510
  6. Step 6: Final answer
    x = 2,674.42

Related Problems

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Half scale
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Double scale
Find fourth proportional to 3,511, 4,844.95 and 1,939.08
Similar ratio
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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.