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Finding the Fourth Proportional to 1,406.36, 2,107.50 and 967.16

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Solution

The fourth proportional to 1,406.36, 2,107.50 and 967.16 is: 1,449.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406.36 : 2,107.50 = 967.16 : x
  2. Step 2: Convert to fraction form
    1,406.36/2,107.50 = 967.16/x
  3. Step 3: Cross multiply
    1,406.36x = 2,107.50 × 967.16
  4. Step 4: Simplify right side
    1,406.36x = 2,038,289.70
  5. Step 5: Solve for x
    x = 2,038,289.70/1,406.36
  6. Step 6: Final answer
    x = 1,449.34

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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.