Home / 2,184.64-3,277.60-1,211.20

Finding the Fourth Proportional to 2,184.64, 3,277.60 and 1,211.20

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Solution

The fourth proportional to 2,184.64, 3,277.60 and 1,211.20 is: 1,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.64 : 3,277.60 = 1,211.20 : x
  2. Step 2: Convert to fraction form
    2,184.64/3,277.60 = 1,211.20/x
  3. Step 3: Cross multiply
    2,184.64x = 3,277.60 × 1,211.20
  4. Step 4: Simplify right side
    2,184.64x = 3,969,829.12
  5. Step 5: Solve for x
    x = 3,969,829.12/2,184.64
  6. Step 6: Final answer
    x = 1,817.15

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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.