Home / 1,838.40-2,743.44-1,619.52

Finding the Fourth Proportional to 1,838.40, 2,743.44 and 1,619.52

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Solution

The fourth proportional to 1,838.40, 2,743.44 and 1,619.52 is: 2,416.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838.40 : 2,743.44 = 1,619.52 : x
  2. Step 2: Convert to fraction form
    1,838.40/2,743.44 = 1,619.52/x
  3. Step 3: Cross multiply
    1,838.40x = 2,743.44 × 1,619.52
  4. Step 4: Simplify right side
    1,838.40x = 4,443,055.95
  5. Step 5: Solve for x
    x = 4,443,055.95/1,838.40
  6. Step 6: Final answer
    x = 2,416.81

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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.