Home / 1,871.25-2,580.39-1,241.55

Finding the Fourth Proportional to 1,871.25, 2,580.39 and 1,241.55

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Solution

The fourth proportional to 1,871.25, 2,580.39 and 1,241.55 is: 1,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.25 : 2,580.39 = 1,241.55 : x
  2. Step 2: Convert to fraction form
    1,871.25/2,580.39 = 1,241.55/x
  3. Step 3: Cross multiply
    1,871.25x = 2,580.39 × 1,241.55
  4. Step 4: Simplify right side
    1,871.25x = 3,203,670.30
  5. Step 5: Solve for x
    x = 3,203,670.30/1,871.25
  6. Step 6: Final answer
    x = 1,712.05

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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.