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Finding the Fourth Proportional to 5,636.56, 7,779.03 and 3,246.61

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Solution

The fourth proportional to 5,636.56, 7,779.03 and 3,246.61 is: 4,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.56 : 7,779.03 = 3,246.61 : x
  2. Step 2: Convert to fraction form
    5,636.56/7,779.03 = 3,246.61/x
  3. Step 3: Cross multiply
    5,636.56x = 7,779.03 × 3,246.61
  4. Step 4: Simplify right side
    5,636.56x = 25,255,476.59
  5. Step 5: Solve for x
    x = 25,255,476.59/5,636.56
  6. Step 6: Final answer
    x = 4,480.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.