Home / 2,747.08-4,117.74-1,285

Finding the Fourth Proportional to 2,747.08, 4,117.74 and 1,285

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Solution

The fourth proportional to 2,747.08, 4,117.74 and 1,285 is: 1,926.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,747.08 : 4,117.74 = 1,285 : x
  2. Step 2: Convert to fraction form
    2,747.08/4,117.74 = 1,285/x
  3. Step 3: Cross multiply
    2,747.08x = 4,117.74 × 1,285
  4. Step 4: Simplify right side
    2,747.08x = 5,291,295.90
  5. Step 5: Solve for x
    x = 5,291,295.90/2,747.08
  6. Step 6: Final answer
    x = 1,926.15

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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.