Home / 1,643.14-2,267.49-897.06

Finding the Fourth Proportional to 1,643.14, 2,267.49 and 897.06

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Solution

The fourth proportional to 1,643.14, 2,267.49 and 897.06 is: 1,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.14 : 2,267.49 = 897.06 : x
  2. Step 2: Convert to fraction form
    1,643.14/2,267.49 = 897.06/x
  3. Step 3: Cross multiply
    1,643.14x = 2,267.49 × 897.06
  4. Step 4: Simplify right side
    1,643.14x = 2,034,074.58
  5. Step 5: Solve for x
    x = 2,034,074.58/1,643.14
  6. Step 6: Final answer
    x = 1,237.92

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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.