Home / 3,476.91-4,798.14-1,905

Finding the Fourth Proportional to 3,476.91, 4,798.14 and 1,905

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Solution

The fourth proportional to 3,476.91, 4,798.14 and 1,905 is: 2,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,476.91 : 4,798.14 = 1,905 : x
  2. Step 2: Convert to fraction form
    3,476.91/4,798.14 = 1,905/x
  3. Step 3: Cross multiply
    3,476.91x = 4,798.14 × 1,905
  4. Step 4: Simplify right side
    3,476.91x = 9,140,449.56
  5. Step 5: Solve for x
    x = 9,140,449.56/3,476.91
  6. Step 6: Final answer
    x = 2,628.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.