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Finding the Fourth Proportional to 2,615.04, 3,922.56 and 884.88

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Solution

The fourth proportional to 2,615.04, 3,922.56 and 884.88 is: 1,327.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.04 : 3,922.56 = 884.88 : x
  2. Step 2: Convert to fraction form
    2,615.04/3,922.56 = 884.88/x
  3. Step 3: Cross multiply
    2,615.04x = 3,922.56 × 884.88
  4. Step 4: Simplify right side
    2,615.04x = 3,470,994.89
  5. Step 5: Solve for x
    x = 3,470,994.89/2,615.04
  6. Step 6: Final answer
    x = 1,327.32

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Double scale
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Similar ratio
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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.