Home / 1,905.68-2,628.96-1,485.32

Finding the Fourth Proportional to 1,905.68, 2,628.96 and 1,485.32

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Solution

The fourth proportional to 1,905.68, 2,628.96 and 1,485.32 is: 2,049.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.68 : 2,628.96 = 1,485.32 : x
  2. Step 2: Convert to fraction form
    1,905.68/2,628.96 = 1,485.32/x
  3. Step 3: Cross multiply
    1,905.68x = 2,628.96 × 1,485.32
  4. Step 4: Simplify right side
    1,905.68x = 3,904,846.87
  5. Step 5: Solve for x
    x = 3,904,846.87/1,905.68
  6. Step 6: Final answer
    x = 2,049.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.