Home / 3,110.54-4,292.80-1,784.30

Finding the Fourth Proportional to 3,110.54, 4,292.80 and 1,784.30

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Solution

The fourth proportional to 3,110.54, 4,292.80 and 1,784.30 is: 2,462.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.54 : 4,292.80 = 1,784.30 : x
  2. Step 2: Convert to fraction form
    3,110.54/4,292.80 = 1,784.30/x
  3. Step 3: Cross multiply
    3,110.54x = 4,292.80 × 1,784.30
  4. Step 4: Simplify right side
    3,110.54x = 7,659,617.12
  5. Step 5: Solve for x
    x = 7,659,617.12/3,110.54
  6. Step 6: Final answer
    x = 2,462.48

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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.