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Finding the Fourth Proportional to 6,880.61, 10,320.95 and 2,200.64

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Solution

The fourth proportional to 6,880.61, 10,320.95 and 2,200.64 is: 3,300.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.61 : 10,320.95 = 2,200.64 : x
  2. Step 2: Convert to fraction form
    6,880.61/10,320.95 = 2,200.64/x
  3. Step 3: Cross multiply
    6,880.61x = 10,320.95 × 2,200.64
  4. Step 4: Simplify right side
    6,880.61x = 22,712,649.30
  5. Step 5: Solve for x
    x = 22,712,649.30/6,880.61
  6. Step 6: Final answer
    x = 3,300.96

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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.