Home / 2,319.48-3,480.20-1,224.64

Finding the Fourth Proportional to 2,319.48, 3,480.20 and 1,224.64

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Solution

The fourth proportional to 2,319.48, 3,480.20 and 1,224.64 is: 1,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,319.48 : 3,480.20 = 1,224.64 : x
  2. Step 2: Convert to fraction form
    2,319.48/3,480.20 = 1,224.64/x
  3. Step 3: Cross multiply
    2,319.48x = 3,480.20 × 1,224.64
  4. Step 4: Simplify right side
    2,319.48x = 4,261,992.13
  5. Step 5: Solve for x
    x = 4,261,992.13/2,319.48
  6. Step 6: Final answer
    x = 1,837.48

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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.