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Finding the Fourth Proportional to 6,191.64, 9,329.88 and 5,119.98

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Solution

The fourth proportional to 6,191.64, 9,329.88 and 5,119.98 is: 7,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.64 : 9,329.88 = 5,119.98 : x
  2. Step 2: Convert to fraction form
    6,191.64/9,329.88 = 5,119.98/x
  3. Step 3: Cross multiply
    6,191.64x = 9,329.88 × 5,119.98
  4. Step 4: Simplify right side
    6,191.64x = 47,768,799.00
  5. Step 5: Solve for x
    x = 47,768,799.00/6,191.64
  6. Step 6: Final answer
    x = 7,715.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.