Home / 2,856.74-4,285.44-1,212.37

Finding the Fourth Proportional to 2,856.74, 4,285.44 and 1,212.37

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Solution

The fourth proportional to 2,856.74, 4,285.44 and 1,212.37 is: 1,818.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,856.74 : 4,285.44 = 1,212.37 : x
  2. Step 2: Convert to fraction form
    2,856.74/4,285.44 = 1,212.37/x
  3. Step 3: Cross multiply
    2,856.74x = 4,285.44 × 1,212.37
  4. Step 4: Simplify right side
    2,856.74x = 5,195,528.18
  5. Step 5: Solve for x
    x = 5,195,528.18/2,856.74
  6. Step 6: Final answer
    x = 1,818.69

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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.