Home / 1,869.79-2,579.73-1,083.68

Finding the Fourth Proportional to 1,869.79, 2,579.73 and 1,083.68

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Solution

The fourth proportional to 1,869.79, 2,579.73 and 1,083.68 is: 1,495.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,869.79 : 2,579.73 = 1,083.68 : x
  2. Step 2: Convert to fraction form
    1,869.79/2,579.73 = 1,083.68/x
  3. Step 3: Cross multiply
    1,869.79x = 2,579.73 × 1,083.68
  4. Step 4: Simplify right side
    1,869.79x = 2,795,601.81
  5. Step 5: Solve for x
    x = 2,795,601.81/1,869.79
  6. Step 6: Final answer
    x = 1,495.14

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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.