Home / 3,854.40-5,781.60-2,623.20

Finding the Fourth Proportional to 3,854.40, 5,781.60 and 2,623.20

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Solution

The fourth proportional to 3,854.40, 5,781.60 and 2,623.20 is: 3,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.40 : 5,781.60 = 2,623.20 : x
  2. Step 2: Convert to fraction form
    3,854.40/5,781.60 = 2,623.20/x
  3. Step 3: Cross multiply
    3,854.40x = 5,781.60 × 2,623.20
  4. Step 4: Simplify right side
    3,854.40x = 15,166,293.12
  5. Step 5: Solve for x
    x = 15,166,293.12/3,854.40
  6. Step 6: Final answer
    x = 3,934.80

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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.