Home / 5,986.24-8,261.40-4,120

Finding the Fourth Proportional to 5,986.24, 8,261.40 and 4,120

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Solution

The fourth proportional to 5,986.24, 8,261.40 and 4,120 is: 5,685.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,986.24 : 8,261.40 = 4,120 : x
  2. Step 2: Convert to fraction form
    5,986.24/8,261.40 = 4,120/x
  3. Step 3: Cross multiply
    5,986.24x = 8,261.40 × 4,120
  4. Step 4: Simplify right side
    5,986.24x = 34,036,968
  5. Step 5: Solve for x
    x = 34,036,968/5,986.24
  6. Step 6: Final answer
    x = 5,685.87

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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.