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Finding the Fourth Proportional to 2,392.25, 3,588.38 and 660.88

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Solution

The fourth proportional to 2,392.25, 3,588.38 and 660.88 is: 991.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,392.25 : 3,588.38 = 660.88 : x
  2. Step 2: Convert to fraction form
    2,392.25/3,588.38 = 660.88/x
  3. Step 3: Cross multiply
    2,392.25x = 3,588.38 × 660.88
  4. Step 4: Simplify right side
    2,392.25x = 2,371,488.57
  5. Step 5: Solve for x
    x = 2,371,488.57/2,392.25
  6. Step 6: Final answer
    x = 991.32

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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.