Home / 6,720.40-10,075.80-3,019.60

Finding the Fourth Proportional to 6,720.40, 10,075.80 and 3,019.60

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Solution

The fourth proportional to 6,720.40, 10,075.80 and 3,019.60 is: 4,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.40 : 10,075.80 = 3,019.60 : x
  2. Step 2: Convert to fraction form
    6,720.40/10,075.80 = 3,019.60/x
  3. Step 3: Cross multiply
    6,720.40x = 10,075.80 × 3,019.60
  4. Step 4: Simplify right side
    6,720.40x = 30,424,885.68
  5. Step 5: Solve for x
    x = 30,424,885.68/6,720.40
  6. Step 6: Final answer
    x = 4,527.24

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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.