Home / 2,486.61-3,431.47-1,367.53

Finding the Fourth Proportional to 2,486.61, 3,431.47 and 1,367.53

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Solution

The fourth proportional to 2,486.61, 3,431.47 and 1,367.53 is: 1,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.61 : 3,431.47 = 1,367.53 : x
  2. Step 2: Convert to fraction form
    2,486.61/3,431.47 = 1,367.53/x
  3. Step 3: Cross multiply
    2,486.61x = 3,431.47 × 1,367.53
  4. Step 4: Simplify right side
    2,486.61x = 4,692,627.28
  5. Step 5: Solve for x
    x = 4,692,627.28/2,486.61
  6. Step 6: Final answer
    x = 1,887.16

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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.