Home / 1,917.96-2,630.51-1,838.58

Finding the Fourth Proportional to 1,917.96, 2,630.51 and 1,838.58

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Solution

The fourth proportional to 1,917.96, 2,630.51 and 1,838.58 is: 2,521.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.96 : 2,630.51 = 1,838.58 : x
  2. Step 2: Convert to fraction form
    1,917.96/2,630.51 = 1,838.58/x
  3. Step 3: Cross multiply
    1,917.96x = 2,630.51 × 1,838.58
  4. Step 4: Simplify right side
    1,917.96x = 4,836,393.88
  5. Step 5: Solve for x
    x = 4,836,393.88/1,917.96
  6. Step 6: Final answer
    x = 2,521.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.