Home / 3,631.56-5,445.70-1,438.60

Finding the Fourth Proportional to 3,631.56, 5,445.70 and 1,438.60

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Solution

The fourth proportional to 3,631.56, 5,445.70 and 1,438.60 is: 2,157.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.56 : 5,445.70 = 1,438.60 : x
  2. Step 2: Convert to fraction form
    3,631.56/5,445.70 = 1,438.60/x
  3. Step 3: Cross multiply
    3,631.56x = 5,445.70 × 1,438.60
  4. Step 4: Simplify right side
    3,631.56x = 7,834,184.02
  5. Step 5: Solve for x
    x = 7,834,184.02/3,631.56
  6. Step 6: Final answer
    x = 2,157.25

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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.