Home / 2,407.21-3,321.91-1,344.91

Finding the Fourth Proportional to 2,407.21, 3,321.91 and 1,344.91

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Solution

The fourth proportional to 2,407.21, 3,321.91 and 1,344.91 is: 1,855.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,407.21 : 3,321.91 = 1,344.91 : x
  2. Step 2: Convert to fraction form
    2,407.21/3,321.91 = 1,344.91/x
  3. Step 3: Cross multiply
    2,407.21x = 3,321.91 × 1,344.91
  4. Step 4: Simplify right side
    2,407.21x = 4,467,658.31
  5. Step 5: Solve for x
    x = 4,467,658.31/2,407.21
  6. Step 6: Final answer
    x = 1,855.95

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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.