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Finding the Fourth Proportional to 5,636.68, 7,775.22 and 3,539.08

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Solution

The fourth proportional to 5,636.68, 7,775.22 and 3,539.08 is: 4,881.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.68 : 7,775.22 = 3,539.08 : x
  2. Step 2: Convert to fraction form
    5,636.68/7,775.22 = 3,539.08/x
  3. Step 3: Cross multiply
    5,636.68x = 7,775.22 × 3,539.08
  4. Step 4: Simplify right side
    5,636.68x = 27,517,125.60
  5. Step 5: Solve for x
    x = 27,517,125.60/5,636.68
  6. Step 6: Final answer
    x = 4,881.80

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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.