Home / 2,727.20-4,090.80-2,646.20

Finding the Fourth Proportional to 2,727.20, 4,090.80 and 2,646.20

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Solution

The fourth proportional to 2,727.20, 4,090.80 and 2,646.20 is: 3,969.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.20 : 4,090.80 = 2,646.20 : x
  2. Step 2: Convert to fraction form
    2,727.20/4,090.80 = 2,646.20/x
  3. Step 3: Cross multiply
    2,727.20x = 4,090.80 × 2,646.20
  4. Step 4: Simplify right side
    2,727.20x = 10,825,074.96
  5. Step 5: Solve for x
    x = 10,825,074.96/2,727.20
  6. Step 6: Final answer
    x = 3,969.30

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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.