Home / 5,118.42-7,670.19-2,776.44

Finding the Fourth Proportional to 5,118.42, 7,670.19 and 2,776.44

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Solution

The fourth proportional to 5,118.42, 7,670.19 and 2,776.44 is: 4,160.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.42 : 7,670.19 = 2,776.44 : x
  2. Step 2: Convert to fraction form
    5,118.42/7,670.19 = 2,776.44/x
  3. Step 3: Cross multiply
    5,118.42x = 7,670.19 × 2,776.44
  4. Step 4: Simplify right side
    5,118.42x = 21,295,822.32
  5. Step 5: Solve for x
    x = 21,295,822.32/5,118.42
  6. Step 6: Final answer
    x = 4,160.62

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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.