Home / 2,130.73-3,189.43-1,348.02

Finding the Fourth Proportional to 2,130.73, 3,189.43 and 1,348.02

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Solution

The fourth proportional to 2,130.73, 3,189.43 and 1,348.02 is: 2,017.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.73 : 3,189.43 = 1,348.02 : x
  2. Step 2: Convert to fraction form
    2,130.73/3,189.43 = 1,348.02/x
  3. Step 3: Cross multiply
    2,130.73x = 3,189.43 × 1,348.02
  4. Step 4: Simplify right side
    2,130.73x = 4,299,415.43
  5. Step 5: Solve for x
    x = 4,299,415.43/2,130.73
  6. Step 6: Final answer
    x = 2,017.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.