Home / 2,918.53-4,029.09-1,800.07

Finding the Fourth Proportional to 2,918.53, 4,029.09 and 1,800.07

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Solution

The fourth proportional to 2,918.53, 4,029.09 and 1,800.07 is: 2,485.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.53 : 4,029.09 = 1,800.07 : x
  2. Step 2: Convert to fraction form
    2,918.53/4,029.09 = 1,800.07/x
  3. Step 3: Cross multiply
    2,918.53x = 4,029.09 × 1,800.07
  4. Step 4: Simplify right side
    2,918.53x = 7,252,660.00
  5. Step 5: Solve for x
    x = 7,252,660.00/2,918.53
  6. Step 6: Final answer
    x = 2,485.04

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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.