Home / 2,486.94-3,430.68-1,553.82

Finding the Fourth Proportional to 2,486.94, 3,430.68 and 1,553.82

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Solution

The fourth proportional to 2,486.94, 3,430.68 and 1,553.82 is: 2,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.94 : 3,430.68 = 1,553.82 : x
  2. Step 2: Convert to fraction form
    2,486.94/3,430.68 = 1,553.82/x
  3. Step 3: Cross multiply
    2,486.94x = 3,430.68 × 1,553.82
  4. Step 4: Simplify right side
    2,486.94x = 5,330,659.20
  5. Step 5: Solve for x
    x = 5,330,659.20/2,486.94
  6. Step 6: Final answer
    x = 2,143.46

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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.