Home / 3,705.80-5,554.30-1,856.36

Finding the Fourth Proportional to 3,705.80, 5,554.30 and 1,856.36

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Solution

The fourth proportional to 3,705.80, 5,554.30 and 1,856.36 is: 2,782.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,705.80 : 5,554.30 = 1,856.36 : x
  2. Step 2: Convert to fraction form
    3,705.80/5,554.30 = 1,856.36/x
  3. Step 3: Cross multiply
    3,705.80x = 5,554.30 × 1,856.36
  4. Step 4: Simplify right side
    3,705.80x = 10,310,780.35
  5. Step 5: Solve for x
    x = 10,310,780.35/3,705.80
  6. Step 6: Final answer
    x = 2,782.34

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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.