Home / 1,643.19-2,464.78-1,227.93

Finding the Fourth Proportional to 1,643.19, 2,464.78 and 1,227.93

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Solution

The fourth proportional to 1,643.19, 2,464.78 and 1,227.93 is: 1,841.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.19 : 2,464.78 = 1,227.93 : x
  2. Step 2: Convert to fraction form
    1,643.19/2,464.78 = 1,227.93/x
  3. Step 3: Cross multiply
    1,643.19x = 2,464.78 × 1,227.93
  4. Step 4: Simplify right side
    1,643.19x = 3,026,577.31
  5. Step 5: Solve for x
    x = 3,026,577.31/1,643.19
  6. Step 6: Final answer
    x = 1,841.89

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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.