Home / 2,486.57-3,431.55-1,367.59

Finding the Fourth Proportional to 2,486.57, 3,431.55 and 1,367.59

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Solution

The fourth proportional to 2,486.57, 3,431.55 and 1,367.59 is: 1,887.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.57 : 3,431.55 = 1,367.59 : x
  2. Step 2: Convert to fraction form
    2,486.57/3,431.55 = 1,367.59/x
  3. Step 3: Cross multiply
    2,486.57x = 3,431.55 × 1,367.59
  4. Step 4: Simplify right side
    2,486.57x = 4,692,950.05
  5. Step 5: Solve for x
    x = 4,692,950.05/2,486.57
  6. Step 6: Final answer
    x = 1,887.32

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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.