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Finding the Fourth Proportional to 8,920.83, 13,381.25 and 3,723.06

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Solution

The fourth proportional to 8,920.83, 13,381.25 and 3,723.06 is: 5,584.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.83 : 13,381.25 = 3,723.06 : x
  2. Step 2: Convert to fraction form
    8,920.83/13,381.25 = 3,723.06/x
  3. Step 3: Cross multiply
    8,920.83x = 13,381.25 × 3,723.06
  4. Step 4: Simplify right side
    8,920.83x = 49,819,196.63
  5. Step 5: Solve for x
    x = 49,819,196.63/8,920.83
  6. Step 6: Final answer
    x = 5,584.59

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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.