Home / 2,163.64-2,984.70-1,376.32

Finding the Fourth Proportional to 2,163.64, 2,984.70 and 1,376.32

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Solution

The fourth proportional to 2,163.64, 2,984.70 and 1,376.32 is: 1,898.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.64 : 2,984.70 = 1,376.32 : x
  2. Step 2: Convert to fraction form
    2,163.64/2,984.70 = 1,376.32/x
  3. Step 3: Cross multiply
    2,163.64x = 2,984.70 × 1,376.32
  4. Step 4: Simplify right side
    2,163.64x = 4,107,902.30
  5. Step 5: Solve for x
    x = 4,107,902.30/2,163.64
  6. Step 6: Final answer
    x = 1,898.61

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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.