Home / 3,827.12-5,740.56-1,091.12

Finding the Fourth Proportional to 3,827.12, 5,740.56 and 1,091.12

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Solution

The fourth proportional to 3,827.12, 5,740.56 and 1,091.12 is: 1,636.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,827.12 : 5,740.56 = 1,091.12 : x
  2. Step 2: Convert to fraction form
    3,827.12/5,740.56 = 1,091.12/x
  3. Step 3: Cross multiply
    3,827.12x = 5,740.56 × 1,091.12
  4. Step 4: Simplify right side
    3,827.12x = 6,263,639.83
  5. Step 5: Solve for x
    x = 6,263,639.83/3,827.12
  6. Step 6: Final answer
    x = 1,636.65

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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.