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Finding the Fourth Proportional to 2,280.90, 3,196.50 and 2,280.90

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Solution

The fourth proportional to 2,280.90, 3,196.50 and 2,280.90 is: 3,196.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280.90 : 3,196.50 = 2,280.90 : x
  2. Step 2: Convert to fraction form
    2,280.90/3,196.50 = 2,280.90/x
  3. Step 3: Cross multiply
    2,280.90x = 3,196.50 × 2,280.90
  4. Step 4: Simplify right side
    2,280.90x = 7,290,896.85
  5. Step 5: Solve for x
    x = 7,290,896.85/2,280.90
  6. Step 6: Final answer
    x = 3,196.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.