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Finding the Fourth Proportional to 3,958.76, 5,948.91 and 2,111.18

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Solution

The fourth proportional to 3,958.76, 5,948.91 and 2,111.18 is: 3,172.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,958.76 : 5,948.91 = 2,111.18 : x
  2. Step 2: Convert to fraction form
    3,958.76/5,948.91 = 2,111.18/x
  3. Step 3: Cross multiply
    3,958.76x = 5,948.91 × 2,111.18
  4. Step 4: Simplify right side
    3,958.76x = 12,559,219.81
  5. Step 5: Solve for x
    x = 12,559,219.81/3,958.76
  6. Step 6: Final answer
    x = 3,172.51

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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.