Home / 6,720.40-10,080.60-4,266.10

Finding the Fourth Proportional to 6,720.40, 10,080.60 and 4,266.10

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Solution

The fourth proportional to 6,720.40, 10,080.60 and 4,266.10 is: 6,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,720.40 : 10,080.60 = 4,266.10 : x
  2. Step 2: Convert to fraction form
    6,720.40/10,080.60 = 4,266.10/x
  3. Step 3: Cross multiply
    6,720.40x = 10,080.60 × 4,266.10
  4. Step 4: Simplify right side
    6,720.40x = 43,004,847.66
  5. Step 5: Solve for x
    x = 43,004,847.66/6,720.40
  6. Step 6: Final answer
    x = 6,399.15

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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.