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Finding the Fourth Proportional to 4,601.28, 6,899.78 and 1,480.70

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Solution

The fourth proportional to 4,601.28, 6,899.78 and 1,480.70 is: 2,220.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,601.28 : 6,899.78 = 1,480.70 : x
  2. Step 2: Convert to fraction form
    4,601.28/6,899.78 = 1,480.70/x
  3. Step 3: Cross multiply
    4,601.28x = 6,899.78 × 1,480.70
  4. Step 4: Simplify right side
    4,601.28x = 10,216,504.25
  5. Step 5: Solve for x
    x = 10,216,504.25/4,601.28
  6. Step 6: Final answer
    x = 2,220.36

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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.