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Finding the Fourth Proportional to 6,119.20, 8,592.80 and 6,119.20

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Solution

The fourth proportional to 6,119.20, 8,592.80 and 6,119.20 is: 8,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,119.20 : 8,592.80 = 6,119.20 : x
  2. Step 2: Convert to fraction form
    6,119.20/8,592.80 = 6,119.20/x
  3. Step 3: Cross multiply
    6,119.20x = 8,592.80 × 6,119.20
  4. Step 4: Simplify right side
    6,119.20x = 52,581,061.76
  5. Step 5: Solve for x
    x = 52,581,061.76/6,119.20
  6. Step 6: Final answer
    x = 8,592.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.