Home / 6,931.86-10,381.22-4,001.28

Finding the Fourth Proportional to 6,931.86, 10,381.22 and 4,001.28

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Solution

The fourth proportional to 6,931.86, 10,381.22 and 4,001.28 is: 5,992.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,931.86 : 10,381.22 = 4,001.28 : x
  2. Step 2: Convert to fraction form
    6,931.86/10,381.22 = 4,001.28/x
  3. Step 3: Cross multiply
    6,931.86x = 10,381.22 × 4,001.28
  4. Step 4: Simplify right side
    6,931.86x = 41,538,167.96
  5. Step 5: Solve for x
    x = 41,538,167.96/6,931.86
  6. Step 6: Final answer
    x = 5,992.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.