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Finding the Fourth Proportional to 3,867.84, 5,802.66 and 1,270.68

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Solution

The fourth proportional to 3,867.84, 5,802.66 and 1,270.68 is: 1,906.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.84 : 5,802.66 = 1,270.68 : x
  2. Step 2: Convert to fraction form
    3,867.84/5,802.66 = 1,270.68/x
  3. Step 3: Cross multiply
    3,867.84x = 5,802.66 × 1,270.68
  4. Step 4: Simplify right side
    3,867.84x = 7,373,324.01
  5. Step 5: Solve for x
    x = 7,373,324.01/3,867.84
  6. Step 6: Final answer
    x = 1,906.32

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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.