Home / 2,056.77-2,838.62-1,217.97

Finding the Fourth Proportional to 2,056.77, 2,838.62 and 1,217.97

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Solution

The fourth proportional to 2,056.77, 2,838.62 and 1,217.97 is: 1,680.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,056.77 : 2,838.62 = 1,217.97 : x
  2. Step 2: Convert to fraction form
    2,056.77/2,838.62 = 1,217.97/x
  3. Step 3: Cross multiply
    2,056.77x = 2,838.62 × 1,217.97
  4. Step 4: Simplify right side
    2,056.77x = 3,457,357.05
  5. Step 5: Solve for x
    x = 3,457,357.05/2,056.77
  6. Step 6: Final answer
    x = 1,680.96

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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.