Home / 4,075.92-5,618.16-3,189.60

Finding the Fourth Proportional to 4,075.92, 5,618.16 and 3,189.60

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Solution

The fourth proportional to 4,075.92, 5,618.16 and 3,189.60 is: 4,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,075.92 : 5,618.16 = 3,189.60 : x
  2. Step 2: Convert to fraction form
    4,075.92/5,618.16 = 3,189.60/x
  3. Step 3: Cross multiply
    4,075.92x = 5,618.16 × 3,189.60
  4. Step 4: Simplify right side
    4,075.92x = 17,919,683.14
  5. Step 5: Solve for x
    x = 17,919,683.14/4,075.92
  6. Step 6: Final answer
    x = 4,396.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.