Home / 3,638.81-5,021.53-2,066.92

Finding the Fourth Proportional to 3,638.81, 5,021.53 and 2,066.92

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Solution

The fourth proportional to 3,638.81, 5,021.53 and 2,066.92 is: 2,852.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,638.81 : 5,021.53 = 2,066.92 : x
  2. Step 2: Convert to fraction form
    3,638.81/5,021.53 = 2,066.92/x
  3. Step 3: Cross multiply
    3,638.81x = 5,021.53 × 2,066.92
  4. Step 4: Simplify right side
    3,638.81x = 10,379,100.79
  5. Step 5: Solve for x
    x = 10,379,100.79/3,638.81
  6. Step 6: Final answer
    x = 2,852.33

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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.