Home / 3,110.07-4,292.40-2,114.79

Finding the Fourth Proportional to 3,110.07, 4,292.40 and 2,114.79

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Solution

The fourth proportional to 3,110.07, 4,292.40 and 2,114.79 is: 2,918.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.07 : 4,292.40 = 2,114.79 : x
  2. Step 2: Convert to fraction form
    3,110.07/4,292.40 = 2,114.79/x
  3. Step 3: Cross multiply
    3,110.07x = 4,292.40 × 2,114.79
  4. Step 4: Simplify right side
    3,110.07x = 9,077,524.60
  5. Step 5: Solve for x
    x = 9,077,524.60/3,110.07
  6. Step 6: Final answer
    x = 2,918.75

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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.