Home / 2,856.87-4,284.23-1,214.19

Finding the Fourth Proportional to 2,856.87, 4,284.23 and 1,214.19

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Solution

The fourth proportional to 2,856.87, 4,284.23 and 1,214.19 is: 1,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.87 : 4,284.23 = 1,214.19 : x
  2. Step 2: Convert to fraction form
    2,856.87/4,284.23 = 1,214.19/x
  3. Step 3: Cross multiply
    2,856.87x = 4,284.23 × 1,214.19
  4. Step 4: Simplify right side
    2,856.87x = 5,201,863.15
  5. Step 5: Solve for x
    x = 5,201,863.15/2,856.87
  6. Step 6: Final answer
    x = 1,820.83

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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.