Home / 3,948.12-5,922.24-1,315.58

Finding the Fourth Proportional to 3,948.12, 5,922.24 and 1,315.58

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Solution

The fourth proportional to 3,948.12, 5,922.24 and 1,315.58 is: 1,973.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.12 : 5,922.24 = 1,315.58 : x
  2. Step 2: Convert to fraction form
    3,948.12/5,922.24 = 1,315.58/x
  3. Step 3: Cross multiply
    3,948.12x = 5,922.24 × 1,315.58
  4. Step 4: Simplify right side
    3,948.12x = 7,791,180.50
  5. Step 5: Solve for x
    x = 7,791,180.50/3,948.12
  6. Step 6: Final answer
    x = 1,973.39

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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.