Home / 1,869.10-2,579.35-1,083.60

Finding the Fourth Proportional to 1,869.10, 2,579.35 and 1,083.60

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Solution

The fourth proportional to 1,869.10, 2,579.35 and 1,083.60 is: 1,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.10 : 2,579.35 = 1,083.60 : x
  2. Step 2: Convert to fraction form
    1,869.10/2,579.35 = 1,083.60/x
  3. Step 3: Cross multiply
    1,869.10x = 2,579.35 × 1,083.60
  4. Step 4: Simplify right side
    1,869.10x = 2,794,980.95
  5. Step 5: Solve for x
    x = 2,794,980.95/1,869.10
  6. Step 6: Final answer
    x = 1,495.36

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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.