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Finding the Fourth Proportional to 5,653.65, 8,481.76 and 1,854.50

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Solution

The fourth proportional to 5,653.65, 8,481.76 and 1,854.50 is: 2,782.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,653.65 : 8,481.76 = 1,854.50 : x
  2. Step 2: Convert to fraction form
    5,653.65/8,481.76 = 1,854.50/x
  3. Step 3: Cross multiply
    5,653.65x = 8,481.76 × 1,854.50
  4. Step 4: Simplify right side
    5,653.65x = 15,729,423.92
  5. Step 5: Solve for x
    x = 15,729,423.92/5,653.65
  6. Step 6: Final answer
    x = 2,782.17

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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.