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Finding the Fourth Proportional to 2,676.40, 4,012.08 and 944.08

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Solution

The fourth proportional to 2,676.40, 4,012.08 and 944.08 is: 1,415.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,676.40 : 4,012.08 = 944.08 : x
  2. Step 2: Convert to fraction form
    2,676.40/4,012.08 = 944.08/x
  3. Step 3: Cross multiply
    2,676.40x = 4,012.08 × 944.08
  4. Step 4: Simplify right side
    2,676.40x = 3,787,724.49
  5. Step 5: Solve for x
    x = 3,787,724.49/2,676.40
  6. Step 6: Final answer
    x = 1,415.23

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1.5x scale

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.