Home / 7,723.85-11,585.72-1,880.46

Finding the Fourth Proportional to 7,723.85, 11,585.72 and 1,880.46

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Solution

The fourth proportional to 7,723.85, 11,585.72 and 1,880.46 is: 2,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.85 : 11,585.72 = 1,880.46 : x
  2. Step 2: Convert to fraction form
    7,723.85/11,585.72 = 1,880.46/x
  3. Step 3: Cross multiply
    7,723.85x = 11,585.72 × 1,880.46
  4. Step 4: Simplify right side
    7,723.85x = 21,786,473.63
  5. Step 5: Solve for x
    x = 21,786,473.63/7,723.85
  6. Step 6: Final answer
    x = 2,820.68

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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.