Home / 3,618.45-5,427.68-1,886.85

Finding the Fourth Proportional to 3,618.45, 5,427.68 and 1,886.85

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Solution

The fourth proportional to 3,618.45, 5,427.68 and 1,886.85 is: 2,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.45 : 5,427.68 = 1,886.85 : x
  2. Step 2: Convert to fraction form
    3,618.45/5,427.68 = 1,886.85/x
  3. Step 3: Cross multiply
    3,618.45x = 5,427.68 × 1,886.85
  4. Step 4: Simplify right side
    3,618.45x = 10,241,208.57
  5. Step 5: Solve for x
    x = 10,241,208.57/3,618.45
  6. Step 6: Final answer
    x = 2,830.28

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1.5x scale

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.