Home / 7,077.88-10,616.82-2,920.24

Finding the Fourth Proportional to 7,077.88, 10,616.82 and 2,920.24

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Solution

The fourth proportional to 7,077.88, 10,616.82 and 2,920.24 is: 4,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,077.88 : 10,616.82 = 2,920.24 : x
  2. Step 2: Convert to fraction form
    7,077.88/10,616.82 = 2,920.24/x
  3. Step 3: Cross multiply
    7,077.88x = 10,616.82 × 2,920.24
  4. Step 4: Simplify right side
    7,077.88x = 31,003,662.44
  5. Step 5: Solve for x
    x = 31,003,662.44/7,077.88
  6. Step 6: Final answer
    x = 4,380.36

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Double scale
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Similar ratio
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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.