Home / 2,015.12-3,022.45-554.08

Finding the Fourth Proportional to 2,015.12, 3,022.45 and 554.08

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Solution

The fourth proportional to 2,015.12, 3,022.45 and 554.08 is: 831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015.12 : 3,022.45 = 554.08 : x
  2. Step 2: Convert to fraction form
    2,015.12/3,022.45 = 554.08/x
  3. Step 3: Cross multiply
    2,015.12x = 3,022.45 × 554.08
  4. Step 4: Simplify right side
    2,015.12x = 1,674,679.10
  5. Step 5: Solve for x
    x = 1,674,679.10/2,015.12
  6. Step 6: Final answer
    x = 831.06

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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.