Home / 2,015.30-3,022.80-554.57

Finding the Fourth Proportional to 2,015.30, 3,022.80 and 554.57

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Solution

The fourth proportional to 2,015.30, 3,022.80 and 554.57 is: 831.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.30 : 3,022.80 = 554.57 : x
  2. Step 2: Convert to fraction form
    2,015.30/3,022.80 = 554.57/x
  3. Step 3: Cross multiply
    2,015.30x = 3,022.80 × 554.57
  4. Step 4: Simplify right side
    2,015.30x = 1,676,354.20
  5. Step 5: Solve for x
    x = 1,676,354.20/2,015.30
  6. Step 6: Final answer
    x = 831.81

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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.