Home / 1,643.39-2,464.19-1,123.98

Finding the Fourth Proportional to 1,643.39, 2,464.19 and 1,123.98

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Solution

The fourth proportional to 1,643.39, 2,464.19 and 1,123.98 is: 1,685.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.39 : 2,464.19 = 1,123.98 : x
  2. Step 2: Convert to fraction form
    1,643.39/2,464.19 = 1,123.98/x
  3. Step 3: Cross multiply
    1,643.39x = 2,464.19 × 1,123.98
  4. Step 4: Simplify right side
    1,643.39x = 2,769,694.66
  5. Step 5: Solve for x
    x = 2,769,694.66/1,643.39
  6. Step 6: Final answer
    x = 1,685.35

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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.