Home / 4,091.19-6,137.78-1,318.13

Finding the Fourth Proportional to 4,091.19, 6,137.78 and 1,318.13

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Solution

The fourth proportional to 4,091.19, 6,137.78 and 1,318.13 is: 1,977.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,091.19 : 6,137.78 = 1,318.13 : x
  2. Step 2: Convert to fraction form
    4,091.19/6,137.78 = 1,318.13/x
  3. Step 3: Cross multiply
    4,091.19x = 6,137.78 × 1,318.13
  4. Step 4: Simplify right side
    4,091.19x = 8,090,391.95
  5. Step 5: Solve for x
    x = 8,090,391.95/4,091.19
  6. Step 6: Final answer
    x = 1,977.52

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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.