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Finding the Fourth Proportional to 1,800.97, 2,485.33 and 1,015.01

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Solution

The fourth proportional to 1,800.97, 2,485.33 and 1,015.01 is: 1,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,800.97 : 2,485.33 = 1,015.01 : x
  2. Step 2: Convert to fraction form
    1,800.97/2,485.33 = 1,015.01/x
  3. Step 3: Cross multiply
    1,800.97x = 2,485.33 × 1,015.01
  4. Step 4: Simplify right side
    1,800.97x = 2,522,619.84
  5. Step 5: Solve for x
    x = 2,522,619.84/1,800.97
  6. Step 6: Final answer
    x = 1,400.70

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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.