Home / 7,723.89-11,585.90-1,880.48

Finding the Fourth Proportional to 7,723.89, 11,585.90 and 1,880.48

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Solution

The fourth proportional to 7,723.89, 11,585.90 and 1,880.48 is: 2,820.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.89 : 11,585.90 = 1,880.48 : x
  2. Step 2: Convert to fraction form
    7,723.89/11,585.90 = 1,880.48/x
  3. Step 3: Cross multiply
    7,723.89x = 11,585.90 × 1,880.48
  4. Step 4: Simplify right side
    7,723.89x = 21,787,086.90
  5. Step 5: Solve for x
    x = 21,787,086.90/7,723.89
  6. Step 6: Final answer
    x = 2,820.74

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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.