Home / 1,838.25-2,743.89-1,579.90

Finding the Fourth Proportional to 1,838.25, 2,743.89 and 1,579.90

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Solution

The fourth proportional to 1,838.25, 2,743.89 and 1,579.90 is: 2,358.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.25 : 2,743.89 = 1,579.90 : x
  2. Step 2: Convert to fraction form
    1,838.25/2,743.89 = 1,579.90/x
  3. Step 3: Cross multiply
    1,838.25x = 2,743.89 × 1,579.90
  4. Step 4: Simplify right side
    1,838.25x = 4,335,071.81
  5. Step 5: Solve for x
    x = 4,335,071.81/1,838.25
  6. Step 6: Final answer
    x = 2,358.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.