Home / 2,965.12-4,090.56-2,080.96

Finding the Fourth Proportional to 2,965.12, 4,090.56 and 2,080.96

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Solution

The fourth proportional to 2,965.12, 4,090.56 and 2,080.96 is: 2,870.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,965.12 : 4,090.56 = 2,080.96 : x
  2. Step 2: Convert to fraction form
    2,965.12/4,090.56 = 2,080.96/x
  3. Step 3: Cross multiply
    2,965.12x = 4,090.56 × 2,080.96
  4. Step 4: Simplify right side
    2,965.12x = 8,512,291.74
  5. Step 5: Solve for x
    x = 8,512,291.74/2,965.12
  6. Step 6: Final answer
    x = 2,870.81

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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.