Home / 3,237.48-4,467.61-1,978.08

Finding the Fourth Proportional to 3,237.48, 4,467.61 and 1,978.08

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Solution

The fourth proportional to 3,237.48, 4,467.61 and 1,978.08 is: 2,729.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,237.48 : 4,467.61 = 1,978.08 : x
  2. Step 2: Convert to fraction form
    3,237.48/4,467.61 = 1,978.08/x
  3. Step 3: Cross multiply
    3,237.48x = 4,467.61 × 1,978.08
  4. Step 4: Simplify right side
    3,237.48x = 8,837,289.99
  5. Step 5: Solve for x
    x = 8,837,289.99/3,237.48
  6. Step 6: Final answer
    x = 2,729.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.