Home / 2,015.12-3,022.68-554.28

Finding the Fourth Proportional to 2,015.12, 3,022.68 and 554.28

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Solution

The fourth proportional to 2,015.12, 3,022.68 and 554.28 is: 831.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.12 : 3,022.68 = 554.28 : x
  2. Step 2: Convert to fraction form
    2,015.12/3,022.68 = 554.28/x
  3. Step 3: Cross multiply
    2,015.12x = 3,022.68 × 554.28
  4. Step 4: Simplify right side
    2,015.12x = 1,675,408.30
  5. Step 5: Solve for x
    x = 1,675,408.30/2,015.12
  6. Step 6: Final answer
    x = 831.42

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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.