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Finding the Fourth Proportional to 4,880.84, 7,321.26 and 3,007.40

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Solution

The fourth proportional to 4,880.84, 7,321.26 and 3,007.40 is: 4,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,880.84 : 7,321.26 = 3,007.40 : x
  2. Step 2: Convert to fraction form
    4,880.84/7,321.26 = 3,007.40/x
  3. Step 3: Cross multiply
    4,880.84x = 7,321.26 × 3,007.40
  4. Step 4: Simplify right side
    4,880.84x = 22,017,957.32
  5. Step 5: Solve for x
    x = 22,017,957.32/4,880.84
  6. Step 6: Final answer
    x = 4,511.10

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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.