Home / 3,923.04-5,885.40-1,327.68

Finding the Fourth Proportional to 3,923.04, 5,885.40 and 1,327.68

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Solution

The fourth proportional to 3,923.04, 5,885.40 and 1,327.68 is: 1,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.04 : 5,885.40 = 1,327.68 : x
  2. Step 2: Convert to fraction form
    3,923.04/5,885.40 = 1,327.68/x
  3. Step 3: Cross multiply
    3,923.04x = 5,885.40 × 1,327.68
  4. Step 4: Simplify right side
    3,923.04x = 7,813,927.87
  5. Step 5: Solve for x
    x = 7,813,927.87/3,923.04
  6. Step 6: Final answer
    x = 1,991.80

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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.