Home / 3,880.16-5,821.02-1,107.68

Finding the Fourth Proportional to 3,880.16, 5,821.02 and 1,107.68

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Solution

The fourth proportional to 3,880.16, 5,821.02 and 1,107.68 is: 1,661.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.16 : 5,821.02 = 1,107.68 : x
  2. Step 2: Convert to fraction form
    3,880.16/5,821.02 = 1,107.68/x
  3. Step 3: Cross multiply
    3,880.16x = 5,821.02 × 1,107.68
  4. Step 4: Simplify right side
    3,880.16x = 6,447,827.43
  5. Step 5: Solve for x
    x = 6,447,827.43/3,880.16
  6. Step 6: Final answer
    x = 1,661.74

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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.