Home / 5,146.53-7,102.61-2,878.08

Finding the Fourth Proportional to 5,146.53, 7,102.61 and 2,878.08

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Solution

The fourth proportional to 5,146.53, 7,102.61 and 2,878.08 is: 3,971.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.53 : 7,102.61 = 2,878.08 : x
  2. Step 2: Convert to fraction form
    5,146.53/7,102.61 = 2,878.08/x
  3. Step 3: Cross multiply
    5,146.53x = 7,102.61 × 2,878.08
  4. Step 4: Simplify right side
    5,146.53x = 20,441,879.79
  5. Step 5: Solve for x
    x = 20,441,879.79/5,146.53
  6. Step 6: Final answer
    x = 3,971.97

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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.