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Finding the Fourth Proportional to 5,636.99, 7,775.93 and 3,397.55

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Solution

The fourth proportional to 5,636.99, 7,775.93 and 3,397.55 is: 4,686.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.99 : 7,775.93 = 3,397.55 : x
  2. Step 2: Convert to fraction form
    5,636.99/7,775.93 = 3,397.55/x
  3. Step 3: Cross multiply
    5,636.99x = 7,775.93 × 3,397.55
  4. Step 4: Simplify right side
    5,636.99x = 26,419,080.59
  5. Step 5: Solve for x
    x = 26,419,080.59/5,636.99
  6. Step 6: Final answer
    x = 4,686.73

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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.