Home / 1,623.60-2,431.26-1,074.11

Finding the Fourth Proportional to 1,623.60, 2,431.26 and 1,074.11

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Solution

The fourth proportional to 1,623.60, 2,431.26 and 1,074.11 is: 1,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623.60 : 2,431.26 = 1,074.11 : x
  2. Step 2: Convert to fraction form
    1,623.60/2,431.26 = 1,074.11/x
  3. Step 3: Cross multiply
    1,623.60x = 2,431.26 × 1,074.11
  4. Step 4: Simplify right side
    1,623.60x = 2,611,428.52
  5. Step 5: Solve for x
    x = 2,611,428.52/1,623.60
  6. Step 6: Final answer
    x = 1,608.42

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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.