Home / 4,138.76-6,208.08-1,018.80

Finding the Fourth Proportional to 4,138.76, 6,208.08 and 1,018.80

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Solution

The fourth proportional to 4,138.76, 6,208.08 and 1,018.80 is: 1,528.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.76 : 6,208.08 = 1,018.80 : x
  2. Step 2: Convert to fraction form
    4,138.76/6,208.08 = 1,018.80/x
  3. Step 3: Cross multiply
    4,138.76x = 6,208.08 × 1,018.80
  4. Step 4: Simplify right side
    4,138.76x = 6,324,791.90
  5. Step 5: Solve for x
    x = 6,324,791.90/4,138.76
  6. Step 6: Final answer
    x = 1,528.19

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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.