Home / 3,110.40-4,292.61-1,784.43

Finding the Fourth Proportional to 3,110.40, 4,292.61 and 1,784.43

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Solution

The fourth proportional to 3,110.40, 4,292.61 and 1,784.43 is: 2,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.40 : 4,292.61 = 1,784.43 : x
  2. Step 2: Convert to fraction form
    3,110.40/4,292.61 = 1,784.43/x
  3. Step 3: Cross multiply
    3,110.40x = 4,292.61 × 1,784.43
  4. Step 4: Simplify right side
    3,110.40x = 7,659,862.06
  5. Step 5: Solve for x
    x = 7,659,862.06/3,110.40
  6. Step 6: Final answer
    x = 2,462.66

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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.