Home / 2,486.55-3,431.36-1,367.49

Finding the Fourth Proportional to 2,486.55, 3,431.36 and 1,367.49

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Solution

The fourth proportional to 2,486.55, 3,431.36 and 1,367.49 is: 1,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.55 : 3,431.36 = 1,367.49 : x
  2. Step 2: Convert to fraction form
    2,486.55/3,431.36 = 1,367.49/x
  3. Step 3: Cross multiply
    2,486.55x = 3,431.36 × 1,367.49
  4. Step 4: Simplify right side
    2,486.55x = 4,692,350.49
  5. Step 5: Solve for x
    x = 4,692,350.49/2,486.55
  6. Step 6: Final answer
    x = 1,887.09

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1.5x scale

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.