Home / 3,923.02-5,884.47-1,327.78

Finding the Fourth Proportional to 3,923.02, 5,884.47 and 1,327.78

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Solution

The fourth proportional to 3,923.02, 5,884.47 and 1,327.78 is: 1,991.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.02 : 5,884.47 = 1,327.78 : x
  2. Step 2: Convert to fraction form
    3,923.02/5,884.47 = 1,327.78/x
  3. Step 3: Cross multiply
    3,923.02x = 5,884.47 × 1,327.78
  4. Step 4: Simplify right side
    3,923.02x = 7,813,281.58
  5. Step 5: Solve for x
    x = 7,813,281.58/3,923.02
  6. Step 6: Final answer
    x = 1,991.65

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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.