Home / 3,674.16-5,511.44-1,209.20

Finding the Fourth Proportional to 3,674.16, 5,511.44 and 1,209.20

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Solution

The fourth proportional to 3,674.16, 5,511.44 and 1,209.20 is: 1,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,674.16 : 5,511.44 = 1,209.20 : x
  2. Step 2: Convert to fraction form
    3,674.16/5,511.44 = 1,209.20/x
  3. Step 3: Cross multiply
    3,674.16x = 5,511.44 × 1,209.20
  4. Step 4: Simplify right side
    3,674.16x = 6,664,408.71
  5. Step 5: Solve for x
    x = 6,664,408.71/3,674.16
  6. Step 6: Final answer
    x = 1,813.86

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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.