Home / 4,791.38-7,185.99-1,328.90

Finding the Fourth Proportional to 4,791.38, 7,185.99 and 1,328.90

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Solution

The fourth proportional to 4,791.38, 7,185.99 and 1,328.90 is: 1,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.38 : 7,185.99 = 1,328.90 : x
  2. Step 2: Convert to fraction form
    4,791.38/7,185.99 = 1,328.90/x
  3. Step 3: Cross multiply
    4,791.38x = 7,185.99 × 1,328.90
  4. Step 4: Simplify right side
    4,791.38x = 9,549,462.11
  5. Step 5: Solve for x
    x = 9,549,462.11/4,791.38
  6. Step 6: Final answer
    x = 1,993.05

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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.