Home / 3,623.78-5,435.67-3,439.10

Finding the Fourth Proportional to 3,623.78, 5,435.67 and 3,439.10

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Solution

The fourth proportional to 3,623.78, 5,435.67 and 3,439.10 is: 5,158.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,623.78 : 5,435.67 = 3,439.10 : x
  2. Step 2: Convert to fraction form
    3,623.78/5,435.67 = 3,439.10/x
  3. Step 3: Cross multiply
    3,623.78x = 5,435.67 × 3,439.10
  4. Step 4: Simplify right side
    3,623.78x = 18,693,812.70
  5. Step 5: Solve for x
    x = 18,693,812.70/3,623.78
  6. Step 6: Final answer
    x = 5,158.65

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Half scale
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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.