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Finding the Fourth Proportional to 5,640.58, 8,461.15 and 1,480.60

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Solution

The fourth proportional to 5,640.58, 8,461.15 and 1,480.60 is: 2,220.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.58 : 8,461.15 = 1,480.60 : x
  2. Step 2: Convert to fraction form
    5,640.58/8,461.15 = 1,480.60/x
  3. Step 3: Cross multiply
    5,640.58x = 8,461.15 × 1,480.60
  4. Step 4: Simplify right side
    5,640.58x = 12,527,578.69
  5. Step 5: Solve for x
    x = 12,527,578.69/5,640.58
  6. Step 6: Final answer
    x = 2,220.97

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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.