Home / 1,819.80-2,726.40-1,038.84

Finding the Fourth Proportional to 1,819.80, 2,726.40 and 1,038.84

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Solution

The fourth proportional to 1,819.80, 2,726.40 and 1,038.84 is: 1,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819.80 : 2,726.40 = 1,038.84 : x
  2. Step 2: Convert to fraction form
    1,819.80/2,726.40 = 1,038.84/x
  3. Step 3: Cross multiply
    1,819.80x = 2,726.40 × 1,038.84
  4. Step 4: Simplify right side
    1,819.80x = 2,832,293.38
  5. Step 5: Solve for x
    x = 2,832,293.38/1,819.80
  6. Step 6: Final answer
    x = 1,556.38

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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.