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Finding the Fourth Proportional to 2,127.62, 3,192.39 and 957.92

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Solution

The fourth proportional to 2,127.62, 3,192.39 and 957.92 is: 1,437.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127.62 : 3,192.39 = 957.92 : x
  2. Step 2: Convert to fraction form
    2,127.62/3,192.39 = 957.92/x
  3. Step 3: Cross multiply
    2,127.62x = 3,192.39 × 957.92
  4. Step 4: Simplify right side
    2,127.62x = 3,058,038.27
  5. Step 5: Solve for x
    x = 3,058,038.27/2,127.62
  6. Step 6: Final answer
    x = 1,437.31

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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.