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Finding the Fourth Proportional to 3,315.28, 4,968.64 and 1,755.24

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Solution

The fourth proportional to 3,315.28, 4,968.64 and 1,755.24 is: 2,630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.28 : 4,968.64 = 1,755.24 : x
  2. Step 2: Convert to fraction form
    3,315.28/4,968.64 = 1,755.24/x
  3. Step 3: Cross multiply
    3,315.28x = 4,968.64 × 1,755.24
  4. Step 4: Simplify right side
    3,315.28x = 8,721,155.67
  5. Step 5: Solve for x
    x = 8,721,155.67/3,315.28
  6. Step 6: Final answer
    x = 2,630.59

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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.