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Finding the Fourth Proportional to 1,800.96, 2,485.23 and 1,004.25

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Solution

The fourth proportional to 1,800.96, 2,485.23 and 1,004.25 is: 1,385.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.96 : 2,485.23 = 1,004.25 : x
  2. Step 2: Convert to fraction form
    1,800.96/2,485.23 = 1,004.25/x
  3. Step 3: Cross multiply
    1,800.96x = 2,485.23 × 1,004.25
  4. Step 4: Simplify right side
    1,800.96x = 2,495,792.23
  5. Step 5: Solve for x
    x = 2,495,792.23/1,800.96
  6. Step 6: Final answer
    x = 1,385.81

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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.