Home / 1,908.45-2,633.72-1,069.16

Finding the Fourth Proportional to 1,908.45, 2,633.72 and 1,069.16

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Solution

The fourth proportional to 1,908.45, 2,633.72 and 1,069.16 is: 1,475.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,908.45 : 2,633.72 = 1,069.16 : x
  2. Step 2: Convert to fraction form
    1,908.45/2,633.72 = 1,069.16/x
  3. Step 3: Cross multiply
    1,908.45x = 2,633.72 × 1,069.16
  4. Step 4: Simplify right side
    1,908.45x = 2,815,857.58
  5. Step 5: Solve for x
    x = 2,815,857.58/1,908.45
  6. Step 6: Final answer
    x = 1,475.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.