Home / 3,928.72-5,892.08-1,154.80

Finding the Fourth Proportional to 3,928.72, 5,892.08 and 1,154.80

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Solution

The fourth proportional to 3,928.72, 5,892.08 and 1,154.80 is: 1,731.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.72 : 5,892.08 = 1,154.80 : x
  2. Step 2: Convert to fraction form
    3,928.72/5,892.08 = 1,154.80/x
  3. Step 3: Cross multiply
    3,928.72x = 5,892.08 × 1,154.80
  4. Step 4: Simplify right side
    3,928.72x = 6,804,173.98
  5. Step 5: Solve for x
    x = 6,804,173.98/3,928.72
  6. Step 6: Final answer
    x = 1,731.91

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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.