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Finding the Fourth Proportional to 3,676.58, 5,512.79 and 1,210.74

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Solution

The fourth proportional to 3,676.58, 5,512.79 and 1,210.74 is: 1,815.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.58 : 5,512.79 = 1,210.74 : x
  2. Step 2: Convert to fraction form
    3,676.58/5,512.79 = 1,210.74/x
  3. Step 3: Cross multiply
    3,676.58x = 5,512.79 × 1,210.74
  4. Step 4: Simplify right side
    3,676.58x = 6,674,555.36
  5. Step 5: Solve for x
    x = 6,674,555.36/3,676.58
  6. Step 6: Final answer
    x = 1,815.43

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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.