Home / 1,957.69-2,917.47-1,898.36

Finding the Fourth Proportional to 1,957.69, 2,917.47 and 1,898.36

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Solution

The fourth proportional to 1,957.69, 2,917.47 and 1,898.36 is: 2,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,957.69 : 2,917.47 = 1,898.36 : x
  2. Step 2: Convert to fraction form
    1,957.69/2,917.47 = 1,898.36/x
  3. Step 3: Cross multiply
    1,957.69x = 2,917.47 × 1,898.36
  4. Step 4: Simplify right side
    1,957.69x = 5,538,408.35
  5. Step 5: Solve for x
    x = 5,538,408.35/1,957.69
  6. Step 6: Final answer
    x = 2,829.05

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.