Home / 1,657.96-2,488.62-1,108.36

Finding the Fourth Proportional to 1,657.96, 2,488.62 and 1,108.36

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Solution

The fourth proportional to 1,657.96, 2,488.62 and 1,108.36 is: 1,663.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657.96 : 2,488.62 = 1,108.36 : x
  2. Step 2: Convert to fraction form
    1,657.96/2,488.62 = 1,108.36/x
  3. Step 3: Cross multiply
    1,657.96x = 2,488.62 × 1,108.36
  4. Step 4: Simplify right side
    1,657.96x = 2,758,286.86
  5. Step 5: Solve for x
    x = 2,758,286.86/1,657.96
  6. Step 6: Final answer
    x = 1,663.66

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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.