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Finding the Fourth Proportional to 3,674.32, 5,511.52 and 900.98

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Solution

The fourth proportional to 3,674.32, 5,511.52 and 900.98 is: 1,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.32 : 5,511.52 = 900.98 : x
  2. Step 2: Convert to fraction form
    3,674.32/5,511.52 = 900.98/x
  3. Step 3: Cross multiply
    3,674.32x = 5,511.52 × 900.98
  4. Step 4: Simplify right side
    3,674.32x = 4,965,769.29
  5. Step 5: Solve for x
    x = 4,965,769.29/3,674.32
  6. Step 6: Final answer
    x = 1,351.48

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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.