Home / 4,189.81-5,771.97-2,928.53

Finding the Fourth Proportional to 4,189.81, 5,771.97 and 2,928.53

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Solution

The fourth proportional to 4,189.81, 5,771.97 and 2,928.53 is: 4,034.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,189.81 : 5,771.97 = 2,928.53 : x
  2. Step 2: Convert to fraction form
    4,189.81/5,771.97 = 2,928.53/x
  3. Step 3: Cross multiply
    4,189.81x = 5,771.97 × 2,928.53
  4. Step 4: Simplify right side
    4,189.81x = 16,903,389.62
  5. Step 5: Solve for x
    x = 16,903,389.62/4,189.81
  6. Step 6: Final answer
    x = 4,034.40

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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.