Home / 7,880.59-11,821.81-2,616.06

Finding the Fourth Proportional to 7,880.59, 11,821.81 and 2,616.06

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Solution

The fourth proportional to 7,880.59, 11,821.81 and 2,616.06 is: 3,924.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.59 : 11,821.81 = 2,616.06 : x
  2. Step 2: Convert to fraction form
    7,880.59/11,821.81 = 2,616.06/x
  3. Step 3: Cross multiply
    7,880.59x = 11,821.81 × 2,616.06
  4. Step 4: Simplify right side
    7,880.59x = 30,926,564.27
  5. Step 5: Solve for x
    x = 30,926,564.27/7,880.59
  6. Step 6: Final answer
    x = 3,924.40

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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.