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Finding the Fourth Proportional to 2,480.64, 3,720.90 and 606.54

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Solution

The fourth proportional to 2,480.64, 3,720.90 and 606.54 is: 909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,480.64 : 3,720.90 = 606.54 : x
  2. Step 2: Convert to fraction form
    2,480.64/3,720.90 = 606.54/x
  3. Step 3: Cross multiply
    2,480.64x = 3,720.90 × 606.54
  4. Step 4: Simplify right side
    2,480.64x = 2,256,874.69
  5. Step 5: Solve for x
    x = 2,256,874.69/2,480.64
  6. Step 6: Final answer
    x = 909.80

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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.