Home / 1,277.14-1,916.01-455.48

Finding the Fourth Proportional to 1,277.14, 1,916.01 and 455.48

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Solution

The fourth proportional to 1,277.14, 1,916.01 and 455.48 is: 683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.14 : 1,916.01 = 455.48 : x
  2. Step 2: Convert to fraction form
    1,277.14/1,916.01 = 455.48/x
  3. Step 3: Cross multiply
    1,277.14x = 1,916.01 × 455.48
  4. Step 4: Simplify right side
    1,277.14x = 872,704.23
  5. Step 5: Solve for x
    x = 872,704.23/1,277.14
  6. Step 6: Final answer
    x = 683.33

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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.