Home / 3,188.14-4,779.47-1,212.66

Finding the Fourth Proportional to 3,188.14, 4,779.47 and 1,212.66

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Solution

The fourth proportional to 3,188.14, 4,779.47 and 1,212.66 is: 1,817.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188.14 : 4,779.47 = 1,212.66 : x
  2. Step 2: Convert to fraction form
    3,188.14/4,779.47 = 1,212.66/x
  3. Step 3: Cross multiply
    3,188.14x = 4,779.47 × 1,212.66
  4. Step 4: Simplify right side
    3,188.14x = 5,795,875.12
  5. Step 5: Solve for x
    x = 5,795,875.12/3,188.14
  6. Step 6: Final answer
    x = 1,817.95

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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.