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Finding the Fourth Proportional to 6,301.60, 9,451.20 and 1,919.20

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Solution

The fourth proportional to 6,301.60, 9,451.20 and 1,919.20 is: 2,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,301.60 : 9,451.20 = 1,919.20 : x
  2. Step 2: Convert to fraction form
    6,301.60/9,451.20 = 1,919.20/x
  3. Step 3: Cross multiply
    6,301.60x = 9,451.20 × 1,919.20
  4. Step 4: Simplify right side
    6,301.60x = 18,138,743.04
  5. Step 5: Solve for x
    x = 18,138,743.04/6,301.60
  6. Step 6: Final answer
    x = 2,878.43

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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.