Home / 3,521.88-4,860.27-1,950.21

Finding the Fourth Proportional to 3,521.88, 4,860.27 and 1,950.21

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Solution

The fourth proportional to 3,521.88, 4,860.27 and 1,950.21 is: 2,691.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.88 : 4,860.27 = 1,950.21 : x
  2. Step 2: Convert to fraction form
    3,521.88/4,860.27 = 1,950.21/x
  3. Step 3: Cross multiply
    3,521.88x = 4,860.27 × 1,950.21
  4. Step 4: Simplify right side
    3,521.88x = 9,478,547.16
  5. Step 5: Solve for x
    x = 9,478,547.16/3,521.88
  6. Step 6: Final answer
    x = 2,691.33

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Half scale
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Double scale
Find fourth proportional to 3,522.88, 4,861.65 and 1,951.21
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.