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Finding the Fourth Proportional to 6,878.88, 10,315.84 and 2,495.20

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Solution

The fourth proportional to 6,878.88, 10,315.84 and 2,495.20 is: 3,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,878.88 : 10,315.84 = 2,495.20 : x
  2. Step 2: Convert to fraction form
    6,878.88/10,315.84 = 2,495.20/x
  3. Step 3: Cross multiply
    6,878.88x = 10,315.84 × 2,495.20
  4. Step 4: Simplify right side
    6,878.88x = 25,740,083.97
  5. Step 5: Solve for x
    x = 25,740,083.97/6,878.88
  6. Step 6: Final answer
    x = 3,741.90

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1.5x scale

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.