Home / 1,600.08-2,399.70-445.56

Finding the Fourth Proportional to 1,600.08, 2,399.70 and 445.56

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Solution

The fourth proportional to 1,600.08, 2,399.70 and 445.56 is: 668.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,600.08 : 2,399.70 = 445.56 : x
  2. Step 2: Convert to fraction form
    1,600.08/2,399.70 = 445.56/x
  3. Step 3: Cross multiply
    1,600.08x = 2,399.70 × 445.56
  4. Step 4: Simplify right side
    1,600.08x = 1,069,210.33
  5. Step 5: Solve for x
    x = 1,069,210.33/1,600.08
  6. Step 6: Final answer
    x = 668.22

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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.