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Finding the Fourth Proportional to 3,642.69, 5,464.40 and 1,450.90

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Solution

The fourth proportional to 3,642.69, 5,464.40 and 1,450.90 is: 2,176.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,642.69 : 5,464.40 = 1,450.90 : x
  2. Step 2: Convert to fraction form
    3,642.69/5,464.40 = 1,450.90/x
  3. Step 3: Cross multiply
    3,642.69x = 5,464.40 × 1,450.90
  4. Step 4: Simplify right side
    3,642.69x = 7,928,297.96
  5. Step 5: Solve for x
    x = 7,928,297.96/3,642.69
  6. Step 6: Final answer
    x = 2,176.50

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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.