Home / 5,116.26-7,060.64-2,878.12

Finding the Fourth Proportional to 5,116.26, 7,060.64 and 2,878.12

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Solution

The fourth proportional to 5,116.26, 7,060.64 and 2,878.12 is: 3,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.26 : 7,060.64 = 2,878.12 : x
  2. Step 2: Convert to fraction form
    5,116.26/7,060.64 = 2,878.12/x
  3. Step 3: Cross multiply
    5,116.26x = 7,060.64 × 2,878.12
  4. Step 4: Simplify right side
    5,116.26x = 20,321,369.20
  5. Step 5: Solve for x
    x = 20,321,369.20/5,116.26
  6. Step 6: Final answer
    x = 3,971.92

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1.5x scale

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.