Home / 1,660.48-2,291.72-997.36

Finding the Fourth Proportional to 1,660.48, 2,291.72 and 997.36

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Solution

The fourth proportional to 1,660.48, 2,291.72 and 997.36 is: 1,376.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660.48 : 2,291.72 = 997.36 : x
  2. Step 2: Convert to fraction form
    1,660.48/2,291.72 = 997.36/x
  3. Step 3: Cross multiply
    1,660.48x = 2,291.72 × 997.36
  4. Step 4: Simplify right side
    1,660.48x = 2,285,669.86
  5. Step 5: Solve for x
    x = 2,285,669.86/1,660.48
  6. Step 6: Final answer
    x = 1,376.51

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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.