Home / 1,862.31-2,790.83-1,371.51

Finding the Fourth Proportional to 1,862.31, 2,790.83 and 1,371.51

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Solution

The fourth proportional to 1,862.31, 2,790.83 and 1,371.51 is: 2,055.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,862.31 : 2,790.83 = 1,371.51 : x
  2. Step 2: Convert to fraction form
    1,862.31/2,790.83 = 1,371.51/x
  3. Step 3: Cross multiply
    1,862.31x = 2,790.83 × 1,371.51
  4. Step 4: Simplify right side
    1,862.31x = 3,827,644.40
  5. Step 5: Solve for x
    x = 3,827,644.40/1,862.31
  6. Step 6: Final answer
    x = 2,055.32

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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.