Home / 6,089.58-8,394.84-3,990.06

Finding the Fourth Proportional to 6,089.58, 8,394.84 and 3,990.06

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Solution

The fourth proportional to 6,089.58, 8,394.84 and 3,990.06 is: 5,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,089.58 : 8,394.84 = 3,990.06 : x
  2. Step 2: Convert to fraction form
    6,089.58/8,394.84 = 3,990.06/x
  3. Step 3: Cross multiply
    6,089.58x = 8,394.84 × 3,990.06
  4. Step 4: Simplify right side
    6,089.58x = 33,495,915.29
  5. Step 5: Solve for x
    x = 33,495,915.29/6,089.58
  6. Step 6: Final answer
    x = 5,500.53

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.