Home / 2,865.93-3,945.56-2,235.75

Finding the Fourth Proportional to 2,865.93, 3,945.56 and 2,235.75

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Solution

The fourth proportional to 2,865.93, 3,945.56 and 2,235.75 is: 3,077.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.93 : 3,945.56 = 2,235.75 : x
  2. Step 2: Convert to fraction form
    2,865.93/3,945.56 = 2,235.75/x
  3. Step 3: Cross multiply
    2,865.93x = 3,945.56 × 2,235.75
  4. Step 4: Simplify right side
    2,865.93x = 8,821,274.59
  5. Step 5: Solve for x
    x = 8,821,274.59/2,865.93
  6. Step 6: Final answer
    x = 3,077.98

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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.