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Finding the Fourth Proportional to 7,880.68, 11,821.02 and 3,263.32

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Solution

The fourth proportional to 7,880.68, 11,821.02 and 3,263.32 is: 4,894.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,880.68 : 11,821.02 = 3,263.32 : x
  2. Step 2: Convert to fraction form
    7,880.68/11,821.02 = 3,263.32/x
  3. Step 3: Cross multiply
    7,880.68x = 11,821.02 × 3,263.32
  4. Step 4: Simplify right side
    7,880.68x = 38,575,770.99
  5. Step 5: Solve for x
    x = 38,575,770.99/7,880.68
  6. Step 6: Final answer
    x = 4,894.98

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Similar ratio
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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.