Home / 4,845.22-6,686.90-2,856.42

Finding the Fourth Proportional to 4,845.22, 6,686.90 and 2,856.42

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Solution

The fourth proportional to 4,845.22, 6,686.90 and 2,856.42 is: 3,942.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.22 : 6,686.90 = 2,856.42 : x
  2. Step 2: Convert to fraction form
    4,845.22/6,686.90 = 2,856.42/x
  3. Step 3: Cross multiply
    4,845.22x = 6,686.90 × 2,856.42
  4. Step 4: Simplify right side
    4,845.22x = 19,100,594.90
  5. Step 5: Solve for x
    x = 19,100,594.90/4,845.22
  6. Step 6: Final answer
    x = 3,942.15

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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.