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Finding the Fourth Proportional to 3,570.79, 4,922.45 and 2,505.33

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Solution

The fourth proportional to 3,570.79, 4,922.45 and 2,505.33 is: 3,453.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.79 : 4,922.45 = 2,505.33 : x
  2. Step 2: Convert to fraction form
    3,570.79/4,922.45 = 2,505.33/x
  3. Step 3: Cross multiply
    3,570.79x = 4,922.45 × 2,505.33
  4. Step 4: Simplify right side
    3,570.79x = 12,332,361.66
  5. Step 5: Solve for x
    x = 12,332,361.66/3,570.79
  6. Step 6: Final answer
    x = 3,453.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.