Home / 2,718.86-4,078.34-1,540.44

Finding the Fourth Proportional to 2,718.86, 4,078.34 and 1,540.44

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Solution

The fourth proportional to 2,718.86, 4,078.34 and 1,540.44 is: 2,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,718.86 : 4,078.34 = 1,540.44 : x
  2. Step 2: Convert to fraction form
    2,718.86/4,078.34 = 1,540.44/x
  3. Step 3: Cross multiply
    2,718.86x = 4,078.34 × 1,540.44
  4. Step 4: Simplify right side
    2,718.86x = 6,282,444.81
  5. Step 5: Solve for x
    x = 6,282,444.81/2,718.86
  6. Step 6: Final answer
    x = 2,310.70

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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.