Home / 6,972.45-10,455.93-2,811.69

Finding the Fourth Proportional to 6,972.45, 10,455.93 and 2,811.69

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Solution

The fourth proportional to 6,972.45, 10,455.93 and 2,811.69 is: 4,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,972.45 : 10,455.93 = 2,811.69 : x
  2. Step 2: Convert to fraction form
    6,972.45/10,455.93 = 2,811.69/x
  3. Step 3: Cross multiply
    6,972.45x = 10,455.93 × 2,811.69
  4. Step 4: Simplify right side
    6,972.45x = 29,398,833.82
  5. Step 5: Solve for x
    x = 29,398,833.82/6,972.45
  6. Step 6: Final answer
    x = 4,216.43

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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.