Home / 1,643.14-2,463.81-1,123.73

Finding the Fourth Proportional to 1,643.14, 2,463.81 and 1,123.73

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Solution

The fourth proportional to 1,643.14, 2,463.81 and 1,123.73 is: 1,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643.14 : 2,463.81 = 1,123.73 : x
  2. Step 2: Convert to fraction form
    1,643.14/2,463.81 = 1,123.73/x
  3. Step 3: Cross multiply
    1,643.14x = 2,463.81 × 1,123.73
  4. Step 4: Simplify right side
    1,643.14x = 2,768,657.21
  5. Step 5: Solve for x
    x = 2,768,657.21/1,643.14
  6. Step 6: Final answer
    x = 1,684.98

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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.