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Finding the Fourth Proportional to 3,911.93, 5,867.88 and 3,683.64

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Solution

The fourth proportional to 3,911.93, 5,867.88 and 3,683.64 is: 5,525.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.93 : 5,867.88 = 3,683.64 : x
  2. Step 2: Convert to fraction form
    3,911.93/5,867.88 = 3,683.64/x
  3. Step 3: Cross multiply
    3,911.93x = 5,867.88 × 3,683.64
  4. Step 4: Simplify right side
    3,911.93x = 21,615,165.67
  5. Step 5: Solve for x
    x = 21,615,165.67/3,911.93
  6. Step 6: Final answer
    x = 5,525.45

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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.