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Finding the Fourth Proportional to 3,160.88, 4,739.52 and 968.96

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Solution

The fourth proportional to 3,160.88, 4,739.52 and 968.96 is: 1,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.88 : 4,739.52 = 968.96 : x
  2. Step 2: Convert to fraction form
    3,160.88/4,739.52 = 968.96/x
  3. Step 3: Cross multiply
    3,160.88x = 4,739.52 × 968.96
  4. Step 4: Simplify right side
    3,160.88x = 4,592,405.30
  5. Step 5: Solve for x
    x = 4,592,405.30/3,160.88
  6. Step 6: Final answer
    x = 1,452.89

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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.