Home / 2,079.12-3,119.58-984.26

Finding the Fourth Proportional to 2,079.12, 3,119.58 and 984.26

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Solution

The fourth proportional to 2,079.12, 3,119.58 and 984.26 is: 1,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.12 : 3,119.58 = 984.26 : x
  2. Step 2: Convert to fraction form
    2,079.12/3,119.58 = 984.26/x
  3. Step 3: Cross multiply
    2,079.12x = 3,119.58 × 984.26
  4. Step 4: Simplify right side
    2,079.12x = 3,070,477.81
  5. Step 5: Solve for x
    x = 3,070,477.81/2,079.12
  6. Step 6: Final answer
    x = 1,476.82

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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.