Home / 5,038.72-6,951.36-3,986.56

Finding the Fourth Proportional to 5,038.72, 6,951.36 and 3,986.56

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Solution

The fourth proportional to 5,038.72, 6,951.36 and 3,986.56 is: 5,499.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,038.72 : 6,951.36 = 3,986.56 : x
  2. Step 2: Convert to fraction form
    5,038.72/6,951.36 = 3,986.56/x
  3. Step 3: Cross multiply
    5,038.72x = 6,951.36 × 3,986.56
  4. Step 4: Simplify right side
    5,038.72x = 27,712,013.72
  5. Step 5: Solve for x
    x = 27,712,013.72/5,038.72
  6. Step 6: Final answer
    x = 5,499.81

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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.