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Finding the Fourth Proportional to 2,961.02, 4,441.26 and 909.02

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Solution

The fourth proportional to 2,961.02, 4,441.26 and 909.02 is: 1,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,961.02 : 4,441.26 = 909.02 : x
  2. Step 2: Convert to fraction form
    2,961.02/4,441.26 = 909.02/x
  3. Step 3: Cross multiply
    2,961.02x = 4,441.26 × 909.02
  4. Step 4: Simplify right side
    2,961.02x = 4,037,194.17
  5. Step 5: Solve for x
    x = 4,037,194.17/2,961.02
  6. Step 6: Final answer
    x = 1,363.45

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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.