Home / 1,871.87-2,583.10-1,105.33

Finding the Fourth Proportional to 1,871.87, 2,583.10 and 1,105.33

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Solution

The fourth proportional to 1,871.87, 2,583.10 and 1,105.33 is: 1,525.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.87 : 2,583.10 = 1,105.33 : x
  2. Step 2: Convert to fraction form
    1,871.87/2,583.10 = 1,105.33/x
  3. Step 3: Cross multiply
    1,871.87x = 2,583.10 × 1,105.33
  4. Step 4: Simplify right side
    1,871.87x = 2,855,177.92
  5. Step 5: Solve for x
    x = 2,855,177.92/1,871.87
  6. Step 6: Final answer
    x = 1,525.31

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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.