Home / 3,609.08-5,408.74-1,874.20

Finding the Fourth Proportional to 3,609.08, 5,408.74 and 1,874.20

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Solution

The fourth proportional to 3,609.08, 5,408.74 and 1,874.20 is: 2,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.08 : 5,408.74 = 1,874.20 : x
  2. Step 2: Convert to fraction form
    3,609.08/5,408.74 = 1,874.20/x
  3. Step 3: Cross multiply
    3,609.08x = 5,408.74 × 1,874.20
  4. Step 4: Simplify right side
    3,609.08x = 10,137,060.51
  5. Step 5: Solve for x
    x = 10,137,060.51/3,609.08
  6. Step 6: Final answer
    x = 2,808.77

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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.