Home / 2,642.24-3,962.21-1,409.37

Finding the Fourth Proportional to 2,642.24, 3,962.21 and 1,409.37

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Solution

The fourth proportional to 2,642.24, 3,962.21 and 1,409.37 is: 2,113.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.24 : 3,962.21 = 1,409.37 : x
  2. Step 2: Convert to fraction form
    2,642.24/3,962.21 = 1,409.37/x
  3. Step 3: Cross multiply
    2,642.24x = 3,962.21 × 1,409.37
  4. Step 4: Simplify right side
    2,642.24x = 5,584,212.86
  5. Step 5: Solve for x
    x = 5,584,212.86/2,642.24
  6. Step 6: Final answer
    x = 2,113.44

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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.