Home / 6,075.96-9,121.47-3,989.43

Finding the Fourth Proportional to 6,075.96, 9,121.47 and 3,989.43

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Solution

The fourth proportional to 6,075.96, 9,121.47 and 3,989.43 is: 5,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,075.96 : 9,121.47 = 3,989.43 : x
  2. Step 2: Convert to fraction form
    6,075.96/9,121.47 = 3,989.43/x
  3. Step 3: Cross multiply
    6,075.96x = 9,121.47 × 3,989.43
  4. Step 4: Simplify right side
    6,075.96x = 36,389,466.06
  5. Step 5: Solve for x
    x = 36,389,466.06/6,075.96
  6. Step 6: Final answer
    x = 5,989.09

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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.