Home / 1,628.05-2,246.58-965.11

Finding the Fourth Proportional to 1,628.05, 2,246.58 and 965.11

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Solution

The fourth proportional to 1,628.05, 2,246.58 and 965.11 is: 1,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.05 : 2,246.58 = 965.11 : x
  2. Step 2: Convert to fraction form
    1,628.05/2,246.58 = 965.11/x
  3. Step 3: Cross multiply
    1,628.05x = 2,246.58 × 965.11
  4. Step 4: Simplify right side
    1,628.05x = 2,168,196.82
  5. Step 5: Solve for x
    x = 2,168,196.82/1,628.05
  6. Step 6: Final answer
    x = 1,331.78

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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.