Home / 2,485.23-3,427.34-1,923.90

Finding the Fourth Proportional to 2,485.23, 3,427.34 and 1,923.90

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Solution

The fourth proportional to 2,485.23, 3,427.34 and 1,923.90 is: 2,653.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.23 : 3,427.34 = 1,923.90 : x
  2. Step 2: Convert to fraction form
    2,485.23/3,427.34 = 1,923.90/x
  3. Step 3: Cross multiply
    2,485.23x = 3,427.34 × 1,923.90
  4. Step 4: Simplify right side
    2,485.23x = 6,593,849.81
  5. Step 5: Solve for x
    x = 6,593,849.81/2,485.23
  6. Step 6: Final answer
    x = 2,653.22

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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.