Home / 1,935.81-2,903.61-1,821.66

Finding the Fourth Proportional to 1,935.81, 2,903.61 and 1,821.66

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Solution

The fourth proportional to 1,935.81, 2,903.61 and 1,821.66 is: 2,732.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.81 : 2,903.61 = 1,821.66 : x
  2. Step 2: Convert to fraction form
    1,935.81/2,903.61 = 1,821.66/x
  3. Step 3: Cross multiply
    1,935.81x = 2,903.61 × 1,821.66
  4. Step 4: Simplify right side
    1,935.81x = 5,289,390.19
  5. Step 5: Solve for x
    x = 5,289,390.19/1,935.81
  6. Step 6: Final answer
    x = 2,732.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.