Home / 1,871.46-2,583.64-1,305.12

Finding the Fourth Proportional to 1,871.46, 2,583.64 and 1,305.12

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Solution

The fourth proportional to 1,871.46, 2,583.64 and 1,305.12 is: 1,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.46 : 2,583.64 = 1,305.12 : x
  2. Step 2: Convert to fraction form
    1,871.46/2,583.64 = 1,305.12/x
  3. Step 3: Cross multiply
    1,871.46x = 2,583.64 × 1,305.12
  4. Step 4: Simplify right side
    1,871.46x = 3,371,960.24
  5. Step 5: Solve for x
    x = 3,371,960.24/1,871.46
  6. Step 6: Final answer
    x = 1,801.78

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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.