Home / 4,791.50-7,187.26-1,328.76

Finding the Fourth Proportional to 4,791.50, 7,187.26 and 1,328.76

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Solution

The fourth proportional to 4,791.50, 7,187.26 and 1,328.76 is: 1,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,791.50 : 7,187.26 = 1,328.76 : x
  2. Step 2: Convert to fraction form
    4,791.50/7,187.26 = 1,328.76/x
  3. Step 3: Cross multiply
    4,791.50x = 7,187.26 × 1,328.76
  4. Step 4: Simplify right side
    4,791.50x = 9,550,143.60
  5. Step 5: Solve for x
    x = 9,550,143.60/4,791.50
  6. Step 6: Final answer
    x = 1,993.14

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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.