Home / 7,942.28-11,913.40-2,395.40

Finding the Fourth Proportional to 7,942.28, 11,913.40 and 2,395.40

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Solution

The fourth proportional to 7,942.28, 11,913.40 and 2,395.40 is: 3,593.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.28 : 11,913.40 = 2,395.40 : x
  2. Step 2: Convert to fraction form
    7,942.28/11,913.40 = 2,395.40/x
  3. Step 3: Cross multiply
    7,942.28x = 11,913.40 × 2,395.40
  4. Step 4: Simplify right side
    7,942.28x = 28,537,358.36
  5. Step 5: Solve for x
    x = 28,537,358.36/7,942.28
  6. Step 6: Final answer
    x = 3,593.09

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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.