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Finding the Fourth Proportional to 3,855.18, 5,786.61 and 2,624.46

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Solution

The fourth proportional to 3,855.18, 5,786.61 and 2,624.46 is: 3,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.18 : 5,786.61 = 2,624.46 : x
  2. Step 2: Convert to fraction form
    3,855.18/5,786.61 = 2,624.46/x
  3. Step 3: Cross multiply
    3,855.18x = 5,786.61 × 2,624.46
  4. Step 4: Simplify right side
    3,855.18x = 15,186,726.48
  5. Step 5: Solve for x
    x = 15,186,726.48/3,855.18
  6. Step 6: Final answer
    x = 3,939.30

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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.