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Finding the Fourth Proportional to 6,698.55, 9,243.18 and 3,865.62

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Solution

The fourth proportional to 6,698.55, 9,243.18 and 3,865.62 is: 5,334.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.55 : 9,243.18 = 3,865.62 : x
  2. Step 2: Convert to fraction form
    6,698.55/9,243.18 = 3,865.62/x
  3. Step 3: Cross multiply
    6,698.55x = 9,243.18 × 3,865.62
  4. Step 4: Simplify right side
    6,698.55x = 35,730,621.47
  5. Step 5: Solve for x
    x = 35,730,621.47/6,698.55
  6. Step 6: Final answer
    x = 5,334.08

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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.