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Finding the Fourth Proportional to 2,914.88, 4,024.48 and 2,219.84

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Solution

The fourth proportional to 2,914.88, 4,024.48 and 2,219.84 is: 3,064.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.88 : 4,024.48 = 2,219.84 : x
  2. Step 2: Convert to fraction form
    2,914.88/4,024.48 = 2,219.84/x
  3. Step 3: Cross multiply
    2,914.88x = 4,024.48 × 2,219.84
  4. Step 4: Simplify right side
    2,914.88x = 8,933,701.68
  5. Step 5: Solve for x
    x = 8,933,701.68/2,914.88
  6. Step 6: Final answer
    x = 3,064.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.