Home / 4,878.41-7,315.77-2,104.88

Finding the Fourth Proportional to 4,878.41, 7,315.77 and 2,104.88

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Solution

The fourth proportional to 4,878.41, 7,315.77 and 2,104.88 is: 3,156.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.41 : 7,315.77 = 2,104.88 : x
  2. Step 2: Convert to fraction form
    4,878.41/7,315.77 = 2,104.88/x
  3. Step 3: Cross multiply
    4,878.41x = 7,315.77 × 2,104.88
  4. Step 4: Simplify right side
    4,878.41x = 15,398,781.38
  5. Step 5: Solve for x
    x = 15,398,781.38/4,878.41
  6. Step 6: Final answer
    x = 3,156.52

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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.