Home / 2,871.48-3,961.26-1,876.36

Finding the Fourth Proportional to 2,871.48, 3,961.26 and 1,876.36

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Solution

The fourth proportional to 2,871.48, 3,961.26 and 1,876.36 is: 2,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.48 : 3,961.26 = 1,876.36 : x
  2. Step 2: Convert to fraction form
    2,871.48/3,961.26 = 1,876.36/x
  3. Step 3: Cross multiply
    2,871.48x = 3,961.26 × 1,876.36
  4. Step 4: Simplify right side
    2,871.48x = 7,432,749.81
  5. Step 5: Solve for x
    x = 7,432,749.81/2,871.48
  6. Step 6: Final answer
    x = 2,588.47

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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.