Home / 3,770.10-5,653.80-1,920.60

Finding the Fourth Proportional to 3,770.10, 5,653.80 and 1,920.60

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Solution

The fourth proportional to 3,770.10, 5,653.80 and 1,920.60 is: 2,880.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.10 : 5,653.80 = 1,920.60 : x
  2. Step 2: Convert to fraction form
    3,770.10/5,653.80 = 1,920.60/x
  3. Step 3: Cross multiply
    3,770.10x = 5,653.80 × 1,920.60
  4. Step 4: Simplify right side
    3,770.10x = 10,858,688.28
  5. Step 5: Solve for x
    x = 10,858,688.28/3,770.10
  6. Step 6: Final answer
    x = 2,880.21

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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.