Home / 1,618.36-2,423.56-923.31

Finding the Fourth Proportional to 1,618.36, 2,423.56 and 923.31

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Solution

The fourth proportional to 1,618.36, 2,423.56 and 923.31 is: 1,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,618.36 : 2,423.56 = 923.31 : x
  2. Step 2: Convert to fraction form
    1,618.36/2,423.56 = 923.31/x
  3. Step 3: Cross multiply
    1,618.36x = 2,423.56 × 923.31
  4. Step 4: Simplify right side
    1,618.36x = 2,237,692.57
  5. Step 5: Solve for x
    x = 2,237,692.57/1,618.36
  6. Step 6: Final answer
    x = 1,382.69

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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.