Home / 3,318.60-4,604.49-3,290.34

Finding the Fourth Proportional to 3,318.60, 4,604.49 and 3,290.34

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Solution

The fourth proportional to 3,318.60, 4,604.49 and 3,290.34 is: 4,565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.60 : 4,604.49 = 3,290.34 : x
  2. Step 2: Convert to fraction form
    3,318.60/4,604.49 = 3,290.34/x
  3. Step 3: Cross multiply
    3,318.60x = 4,604.49 × 3,290.34
  4. Step 4: Simplify right side
    3,318.60x = 15,150,337.63
  5. Step 5: Solve for x
    x = 15,150,337.63/3,318.60
  6. Step 6: Final answer
    x = 4,565.28

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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.