Home / 5,380.90-8,071.35-1,683.15

Finding the Fourth Proportional to 5,380.90, 8,071.35 and 1,683.15

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Solution

The fourth proportional to 5,380.90, 8,071.35 and 1,683.15 is: 2,524.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.90 : 8,071.35 = 1,683.15 : x
  2. Step 2: Convert to fraction form
    5,380.90/8,071.35 = 1,683.15/x
  3. Step 3: Cross multiply
    5,380.90x = 8,071.35 × 1,683.15
  4. Step 4: Simplify right side
    5,380.90x = 13,585,292.75
  5. Step 5: Solve for x
    x = 13,585,292.75/5,380.90
  6. Step 6: Final answer
    x = 2,524.73

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