Home / 4,130.38-6,198.48-1,939.18

Finding the Fourth Proportional to 4,130.38, 6,198.48 and 1,939.18

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Solution

The fourth proportional to 4,130.38, 6,198.48 and 1,939.18 is: 2,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,130.38 : 6,198.48 = 1,939.18 : x
  2. Step 2: Convert to fraction form
    4,130.38/6,198.48 = 1,939.18/x
  3. Step 3: Cross multiply
    4,130.38x = 6,198.48 × 1,939.18
  4. Step 4: Simplify right side
    4,130.38x = 12,019,968.45
  5. Step 5: Solve for x
    x = 12,019,968.45/4,130.38
  6. Step 6: Final answer
    x = 2,910.14

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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.