Home / 1,871.71-2,583.99-1,305.37

Finding the Fourth Proportional to 1,871.71, 2,583.99 and 1,305.37

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Solution

The fourth proportional to 1,871.71, 2,583.99 and 1,305.37 is: 1,802.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.71 : 2,583.99 = 1,305.37 : x
  2. Step 2: Convert to fraction form
    1,871.71/2,583.99 = 1,305.37/x
  3. Step 3: Cross multiply
    1,871.71x = 2,583.99 × 1,305.37
  4. Step 4: Simplify right side
    1,871.71x = 3,373,056.50
  5. Step 5: Solve for x
    x = 3,373,056.50/1,871.71
  6. Step 6: Final answer
    x = 1,802.13

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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.