Home / 1,410.24-2,115.57-436.22

Finding the Fourth Proportional to 1,410.24, 2,115.57 and 436.22

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Solution

The fourth proportional to 1,410.24, 2,115.57 and 436.22 is: 654.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.24 : 2,115.57 = 436.22 : x
  2. Step 2: Convert to fraction form
    1,410.24/2,115.57 = 436.22/x
  3. Step 3: Cross multiply
    1,410.24x = 2,115.57 × 436.22
  4. Step 4: Simplify right side
    1,410.24x = 922,843.37
  5. Step 5: Solve for x
    x = 922,843.37/1,410.24
  6. Step 6: Final answer
    x = 654.39

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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.