Home / 1,404.14-2,107.62-1,147.16

Finding the Fourth Proportional to 1,404.14, 2,107.62 and 1,147.16

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Solution

The fourth proportional to 1,404.14, 2,107.62 and 1,147.16 is: 1,721.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404.14 : 2,107.62 = 1,147.16 : x
  2. Step 2: Convert to fraction form
    1,404.14/2,107.62 = 1,147.16/x
  3. Step 3: Cross multiply
    1,404.14x = 2,107.62 × 1,147.16
  4. Step 4: Simplify right side
    1,404.14x = 2,417,782.63
  5. Step 5: Solve for x
    x = 2,417,782.63/1,404.14
  6. Step 6: Final answer
    x = 1,721.90

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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.