Home / 1,036.14-1,554.43-419.75

Finding the Fourth Proportional to 1,036.14, 1,554.43 and 419.75

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Solution

The fourth proportional to 1,036.14, 1,554.43 and 419.75 is: 629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.14 : 1,554.43 = 419.75 : x
  2. Step 2: Convert to fraction form
    1,036.14/1,554.43 = 419.75/x
  3. Step 3: Cross multiply
    1,036.14x = 1,554.43 × 419.75
  4. Step 4: Simplify right side
    1,036.14x = 652,471.99
  5. Step 5: Solve for x
    x = 652,471.99/1,036.14
  6. Step 6: Final answer
    x = 629.72

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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.