Home / 3,239.78-4,470.80-1,842.50

Finding the Fourth Proportional to 3,239.78, 4,470.80 and 1,842.50

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Solution

The fourth proportional to 3,239.78, 4,470.80 and 1,842.50 is: 2,542.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,239.78 : 4,470.80 = 1,842.50 : x
  2. Step 2: Convert to fraction form
    3,239.78/4,470.80 = 1,842.50/x
  3. Step 3: Cross multiply
    3,239.78x = 4,470.80 × 1,842.50
  4. Step 4: Simplify right side
    3,239.78x = 8,237,449
  5. Step 5: Solve for x
    x = 8,237,449/3,239.78
  6. Step 6: Final answer
    x = 2,542.60

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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.