Home / 2,688.66-4,051.26-2,212.38

Finding the Fourth Proportional to 2,688.66, 4,051.26 and 2,212.38

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Solution

The fourth proportional to 2,688.66, 4,051.26 and 2,212.38 is: 3,333.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.66 : 4,051.26 = 2,212.38 : x
  2. Step 2: Convert to fraction form
    2,688.66/4,051.26 = 2,212.38/x
  3. Step 3: Cross multiply
    2,688.66x = 4,051.26 × 2,212.38
  4. Step 4: Simplify right side
    2,688.66x = 8,962,926.60
  5. Step 5: Solve for x
    x = 8,962,926.60/2,688.66
  6. Step 6: Final answer
    x = 3,333.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.