Home / 3,948.20-5,922.14-1,756.36

Finding the Fourth Proportional to 3,948.20, 5,922.14 and 1,756.36

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Solution

The fourth proportional to 3,948.20, 5,922.14 and 1,756.36 is: 2,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.20 : 5,922.14 = 1,756.36 : x
  2. Step 2: Convert to fraction form
    3,948.20/5,922.14 = 1,756.36/x
  3. Step 3: Cross multiply
    3,948.20x = 5,922.14 × 1,756.36
  4. Step 4: Simplify right side
    3,948.20x = 10,401,409.81
  5. Step 5: Solve for x
    x = 10,401,409.81/3,948.20
  6. Step 6: Final answer
    x = 2,634.47

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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.