Home / 3,521.72-4,860.18-1,949.91

Finding the Fourth Proportional to 3,521.72, 4,860.18 and 1,949.91

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Solution

The fourth proportional to 3,521.72, 4,860.18 and 1,949.91 is: 2,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,521.72 : 4,860.18 = 1,949.91 : x
  2. Step 2: Convert to fraction form
    3,521.72/4,860.18 = 1,949.91/x
  3. Step 3: Cross multiply
    3,521.72x = 4,860.18 × 1,949.91
  4. Step 4: Simplify right side
    3,521.72x = 9,476,913.58
  5. Step 5: Solve for x
    x = 9,476,913.58/3,521.72
  6. Step 6: Final answer
    x = 2,690.99

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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.