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Finding the Fourth Proportional to 3,911.36, 5,867.04 and 1,314.50

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Solution

The fourth proportional to 3,911.36, 5,867.04 and 1,314.50 is: 1,971.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911.36 : 5,867.04 = 1,314.50 : x
  2. Step 2: Convert to fraction form
    3,911.36/5,867.04 = 1,314.50/x
  3. Step 3: Cross multiply
    3,911.36x = 5,867.04 × 1,314.50
  4. Step 4: Simplify right side
    3,911.36x = 7,712,224.08
  5. Step 5: Solve for x
    x = 7,712,224.08/3,911.36
  6. Step 6: Final answer
    x = 1,971.75

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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.