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Finding the Fourth Proportional to 5,116.24, 7,060.24 and 2,878.21

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Solution

The fourth proportional to 5,116.24, 7,060.24 and 2,878.21 is: 3,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.24 : 7,060.24 = 2,878.21 : x
  2. Step 2: Convert to fraction form
    5,116.24/7,060.24 = 2,878.21/x
  3. Step 3: Cross multiply
    5,116.24x = 7,060.24 × 2,878.21
  4. Step 4: Simplify right side
    5,116.24x = 20,320,853.37
  5. Step 5: Solve for x
    x = 20,320,853.37/5,116.24
  6. Step 6: Final answer
    x = 3,971.83

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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.