Home / 2,718.99-4,078.38-1,237.29

Finding the Fourth Proportional to 2,718.99, 4,078.38 and 1,237.29

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Solution

The fourth proportional to 2,718.99, 4,078.38 and 1,237.29 is: 1,855.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.99 : 4,078.38 = 1,237.29 : x
  2. Step 2: Convert to fraction form
    2,718.99/4,078.38 = 1,237.29/x
  3. Step 3: Cross multiply
    2,718.99x = 4,078.38 × 1,237.29
  4. Step 4: Simplify right side
    2,718.99x = 5,046,138.79
  5. Step 5: Solve for x
    x = 5,046,138.79/2,718.99
  6. Step 6: Final answer
    x = 1,855.89

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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.