Home / 3,289.12-4,537.68-2,170.64

Finding the Fourth Proportional to 3,289.12, 4,537.68 and 2,170.64

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Solution

The fourth proportional to 3,289.12, 4,537.68 and 2,170.64 is: 2,994.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.12 : 4,537.68 = 2,170.64 : x
  2. Step 2: Convert to fraction form
    3,289.12/4,537.68 = 2,170.64/x
  3. Step 3: Cross multiply
    3,289.12x = 4,537.68 × 2,170.64
  4. Step 4: Simplify right side
    3,289.12x = 9,849,669.72
  5. Step 5: Solve for x
    x = 9,849,669.72/3,289.12
  6. Step 6: Final answer
    x = 2,994.62

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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.