Home / 2,871.78-3,962.96-1,754.59

Finding the Fourth Proportional to 2,871.78, 3,962.96 and 1,754.59

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Solution

The fourth proportional to 2,871.78, 3,962.96 and 1,754.59 is: 2,421.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,871.78 : 3,962.96 = 1,754.59 : x
  2. Step 2: Convert to fraction form
    2,871.78/3,962.96 = 1,754.59/x
  3. Step 3: Cross multiply
    2,871.78x = 3,962.96 × 1,754.59
  4. Step 4: Simplify right side
    2,871.78x = 6,953,365.32
  5. Step 5: Solve for x
    x = 6,953,365.32/2,871.78
  6. Step 6: Final answer
    x = 2,421.27

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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.