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Finding the Fourth Proportional to 2,127.87, 3,191.94 and 895.08

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Solution

The fourth proportional to 2,127.87, 3,191.94 and 895.08 is: 1,342.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.87 : 3,191.94 = 895.08 : x
  2. Step 2: Convert to fraction form
    2,127.87/3,191.94 = 895.08/x
  3. Step 3: Cross multiply
    2,127.87x = 3,191.94 × 895.08
  4. Step 4: Simplify right side
    2,127.87x = 2,857,041.66
  5. Step 5: Solve for x
    x = 2,857,041.66/2,127.87
  6. Step 6: Final answer
    x = 1,342.68

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1.5x scale

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.