Home / 2,563.20-3,842.40-2,007.60

Finding the Fourth Proportional to 2,563.20, 3,842.40 and 2,007.60

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Solution

The fourth proportional to 2,563.20, 3,842.40 and 2,007.60 is: 3,009.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,563.20 : 3,842.40 = 2,007.60 : x
  2. Step 2: Convert to fraction form
    2,563.20/3,842.40 = 2,007.60/x
  3. Step 3: Cross multiply
    2,563.20x = 3,842.40 × 2,007.60
  4. Step 4: Simplify right side
    2,563.20x = 7,714,002.24
  5. Step 5: Solve for x
    x = 7,714,002.24/2,563.20
  6. Step 6: Final answer
    x = 3,009.52

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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.