Home / 5,261.83-7,261.40-2,871.92

Finding the Fourth Proportional to 5,261.83, 7,261.40 and 2,871.92

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Solution

The fourth proportional to 5,261.83, 7,261.40 and 2,871.92 is: 3,963.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,261.83 : 7,261.40 = 2,871.92 : x
  2. Step 2: Convert to fraction form
    5,261.83/7,261.40 = 2,871.92/x
  3. Step 3: Cross multiply
    5,261.83x = 7,261.40 × 2,871.92
  4. Step 4: Simplify right side
    5,261.83x = 20,854,152.71
  5. Step 5: Solve for x
    x = 20,854,152.71/5,261.83
  6. Step 6: Final answer
    x = 3,963.29

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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.