Home / 3,923.78-5,887.29-2,074.45

Finding the Fourth Proportional to 3,923.78, 5,887.29 and 2,074.45

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Solution

The fourth proportional to 3,923.78, 5,887.29 and 2,074.45 is: 3,112.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.78 : 5,887.29 = 2,074.45 : x
  2. Step 2: Convert to fraction form
    3,923.78/5,887.29 = 2,074.45/x
  3. Step 3: Cross multiply
    3,923.78x = 5,887.29 × 2,074.45
  4. Step 4: Simplify right side
    3,923.78x = 12,212,888.74
  5. Step 5: Solve for x
    x = 12,212,888.74/3,923.78
  6. Step 6: Final answer
    x = 3,112.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.