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Finding the Fourth Proportional to 2,527.92, 3,487.32 and 2,178

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Solution

The fourth proportional to 2,527.92, 3,487.32 and 2,178 is: 3,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,527.92 : 3,487.32 = 2,178 : x
  2. Step 2: Convert to fraction form
    2,527.92/3,487.32 = 2,178/x
  3. Step 3: Cross multiply
    2,527.92x = 3,487.32 × 2,178
  4. Step 4: Simplify right side
    2,527.92x = 7,595,382.96
  5. Step 5: Solve for x
    x = 7,595,382.96/2,527.92
  6. Step 6: Final answer
    x = 3,004.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.