Home / 1,456.18-2,183.76-788.94

Finding the Fourth Proportional to 1,456.18, 2,183.76 and 788.94

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Solution

The fourth proportional to 1,456.18, 2,183.76 and 788.94 is: 1,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.18 : 2,183.76 = 788.94 : x
  2. Step 2: Convert to fraction form
    1,456.18/2,183.76 = 788.94/x
  3. Step 3: Cross multiply
    1,456.18x = 2,183.76 × 788.94
  4. Step 4: Simplify right side
    1,456.18x = 1,722,855.61
  5. Step 5: Solve for x
    x = 1,722,855.61/1,456.18
  6. Step 6: Final answer
    x = 1,183.14

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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.