Home / 3,521.96-4,860.38-1,950.12

Finding the Fourth Proportional to 3,521.96, 4,860.38 and 1,950.12

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Solution

The fourth proportional to 3,521.96, 4,860.38 and 1,950.12 is: 2,691.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.96 : 4,860.38 = 1,950.12 : x
  2. Step 2: Convert to fraction form
    3,521.96/4,860.38 = 1,950.12/x
  3. Step 3: Cross multiply
    3,521.96x = 4,860.38 × 1,950.12
  4. Step 4: Simplify right side
    3,521.96x = 9,478,324.25
  5. Step 5: Solve for x
    x = 9,478,324.25/3,521.96
  6. Step 6: Final answer
    x = 2,691.21

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Double scale
Find fourth proportional to 3,522.96, 4,861.76 and 1,951.12
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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.