Home / 6,781.12-10,169-2,618.84

Finding the Fourth Proportional to 6,781.12, 10,169 and 2,618.84

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Solution

The fourth proportional to 6,781.12, 10,169 and 2,618.84 is: 3,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,781.12 : 10,169 = 2,618.84 : x
  2. Step 2: Convert to fraction form
    6,781.12/10,169 = 2,618.84/x
  3. Step 3: Cross multiply
    6,781.12x = 10,169 × 2,618.84
  4. Step 4: Simplify right side
    6,781.12x = 26,630,983.96
  5. Step 5: Solve for x
    x = 26,630,983.96/6,781.12
  6. Step 6: Final answer
    x = 3,927.22

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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.