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Finding the Fourth Proportional to 3,662.95, 5,494.37 and 889.65

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Solution

The fourth proportional to 3,662.95, 5,494.37 and 889.65 is: 1,334.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,662.95 : 5,494.37 = 889.65 : x
  2. Step 2: Convert to fraction form
    3,662.95/5,494.37 = 889.65/x
  3. Step 3: Cross multiply
    3,662.95x = 5,494.37 × 889.65
  4. Step 4: Simplify right side
    3,662.95x = 4,888,038.80
  5. Step 5: Solve for x
    x = 4,888,038.80/3,662.95
  6. Step 6: Final answer
    x = 1,334.46

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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.