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Finding the Fourth Proportional to 6,805.81, 10,209.18 and 1,874.93

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Solution

The fourth proportional to 6,805.81, 10,209.18 and 1,874.93 is: 2,812.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805.81 : 10,209.18 = 1,874.93 : x
  2. Step 2: Convert to fraction form
    6,805.81/10,209.18 = 1,874.93/x
  3. Step 3: Cross multiply
    6,805.81x = 10,209.18 × 1,874.93
  4. Step 4: Simplify right side
    6,805.81x = 19,141,497.86
  5. Step 5: Solve for x
    x = 19,141,497.86/6,805.81
  6. Step 6: Final answer
    x = 2,812.53

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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.