Home / 3,609.08-4,977.32-2,431.76

Finding the Fourth Proportional to 3,609.08, 4,977.32 and 2,431.76

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Solution

The fourth proportional to 3,609.08, 4,977.32 and 2,431.76 is: 3,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,609.08 : 4,977.32 = 2,431.76 : x
  2. Step 2: Convert to fraction form
    3,609.08/4,977.32 = 2,431.76/x
  3. Step 3: Cross multiply
    3,609.08x = 4,977.32 × 2,431.76
  4. Step 4: Simplify right side
    3,609.08x = 12,103,647.68
  5. Step 5: Solve for x
    x = 12,103,647.68/3,609.08
  6. Step 6: Final answer
    x = 3,353.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.