Home / 1,410.32-2,115.14-436.43

Finding the Fourth Proportional to 1,410.32, 2,115.14 and 436.43

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Solution

The fourth proportional to 1,410.32, 2,115.14 and 436.43 is: 654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,410.32 : 2,115.14 = 436.43 : x
  2. Step 2: Convert to fraction form
    1,410.32/2,115.14 = 436.43/x
  3. Step 3: Cross multiply
    1,410.32x = 2,115.14 × 436.43
  4. Step 4: Simplify right side
    1,410.32x = 923,097.79
  5. Step 5: Solve for x
    x = 923,097.79/1,410.32
  6. Step 6: Final answer
    x = 654.53

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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.