Home / 3,380.09-4,688.38-3,290.18

Finding the Fourth Proportional to 3,380.09, 4,688.38 and 3,290.18

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Solution

The fourth proportional to 3,380.09, 4,688.38 and 3,290.18 is: 4,563.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,380.09 : 4,688.38 = 3,290.18 : x
  2. Step 2: Convert to fraction form
    3,380.09/4,688.38 = 3,290.18/x
  3. Step 3: Cross multiply
    3,380.09x = 4,688.38 × 3,290.18
  4. Step 4: Simplify right side
    3,380.09x = 15,425,594.78
  5. Step 5: Solve for x
    x = 15,425,594.78/3,380.09
  6. Step 6: Final answer
    x = 4,563.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.