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Finding the Fourth Proportional to 6,219.64, 9,329.48 and 3,103.47

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Solution

The fourth proportional to 6,219.64, 9,329.48 and 3,103.47 is: 4,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,219.64 : 9,329.48 = 3,103.47 : x
  2. Step 2: Convert to fraction form
    6,219.64/9,329.48 = 3,103.47/x
  3. Step 3: Cross multiply
    6,219.64x = 9,329.48 × 3,103.47
  4. Step 4: Simplify right side
    6,219.64x = 28,953,757.42
  5. Step 5: Solve for x
    x = 28,953,757.42/6,219.64
  6. Step 6: Final answer
    x = 4,655.21

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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.