Home / 2,080.28-3,120.54-926.12

Finding the Fourth Proportional to 2,080.28, 3,120.54 and 926.12

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Solution

The fourth proportional to 2,080.28, 3,120.54 and 926.12 is: 1,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.28 : 3,120.54 = 926.12 : x
  2. Step 2: Convert to fraction form
    2,080.28/3,120.54 = 926.12/x
  3. Step 3: Cross multiply
    2,080.28x = 3,120.54 × 926.12
  4. Step 4: Simplify right side
    2,080.28x = 2,889,994.50
  5. Step 5: Solve for x
    x = 2,889,994.50/2,080.28
  6. Step 6: Final answer
    x = 1,389.23

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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.