Home / 7,862.28-11,794.70-3,913.72

Finding the Fourth Proportional to 7,862.28, 11,794.70 and 3,913.72

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Solution

The fourth proportional to 7,862.28, 11,794.70 and 3,913.72 is: 5,871.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.28 : 11,794.70 = 3,913.72 : x
  2. Step 2: Convert to fraction form
    7,862.28/11,794.70 = 3,913.72/x
  3. Step 3: Cross multiply
    7,862.28x = 11,794.70 × 3,913.72
  4. Step 4: Simplify right side
    7,862.28x = 46,161,153.28
  5. Step 5: Solve for x
    x = 46,161,153.28/7,862.28
  6. Step 6: Final answer
    x = 5,871.22

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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.