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Finding the Fourth Proportional to 2,270.99, 3,406.60 and 627.50

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Solution

The fourth proportional to 2,270.99, 3,406.60 and 627.50 is: 941.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.99 : 3,406.60 = 627.50 : x
  2. Step 2: Convert to fraction form
    2,270.99/3,406.60 = 627.50/x
  3. Step 3: Cross multiply
    2,270.99x = 3,406.60 × 627.50
  4. Step 4: Simplify right side
    2,270.99x = 2,137,641.50
  5. Step 5: Solve for x
    x = 2,137,641.50/2,270.99
  6. Step 6: Final answer
    x = 941.28

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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.