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Finding the Fourth Proportional to 2,612.04, 3,918.06 and 880.72

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Solution

The fourth proportional to 2,612.04, 3,918.06 and 880.72 is: 1,321.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,612.04 : 3,918.06 = 880.72 : x
  2. Step 2: Convert to fraction form
    2,612.04/3,918.06 = 880.72/x
  3. Step 3: Cross multiply
    2,612.04x = 3,918.06 × 880.72
  4. Step 4: Simplify right side
    2,612.04x = 3,450,713.80
  5. Step 5: Solve for x
    x = 3,450,713.80/2,612.04
  6. Step 6: Final answer
    x = 1,321.08

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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.