Home / 3,880.66-5,821.77-1,108.18

Finding the Fourth Proportional to 3,880.66, 5,821.77 and 1,108.18

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Solution

The fourth proportional to 3,880.66, 5,821.77 and 1,108.18 is: 1,662.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.66 : 5,821.77 = 1,108.18 : x
  2. Step 2: Convert to fraction form
    3,880.66/5,821.77 = 1,108.18/x
  3. Step 3: Cross multiply
    3,880.66x = 5,821.77 × 1,108.18
  4. Step 4: Simplify right side
    3,880.66x = 6,451,569.08
  5. Step 5: Solve for x
    x = 6,451,569.08/3,880.66
  6. Step 6: Final answer
    x = 1,662.49

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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.