Home / 3,110.51-4,292.87-1,784.21

Finding the Fourth Proportional to 3,110.51, 4,292.87 and 1,784.21

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Solution

The fourth proportional to 3,110.51, 4,292.87 and 1,784.21 is: 2,462.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.51 : 4,292.87 = 1,784.21 : x
  2. Step 2: Convert to fraction form
    3,110.51/4,292.87 = 1,784.21/x
  3. Step 3: Cross multiply
    3,110.51x = 4,292.87 × 1,784.21
  4. Step 4: Simplify right side
    3,110.51x = 7,659,351.20
  5. Step 5: Solve for x
    x = 7,659,351.20/3,110.51
  6. Step 6: Final answer
    x = 2,462.41

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1.5x scale

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.