Home / 2,205.16-3,305.50-1,425

Finding the Fourth Proportional to 2,205.16, 3,305.50 and 1,425

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Solution

The fourth proportional to 2,205.16, 3,305.50 and 1,425 is: 2,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.16 : 3,305.50 = 1,425 : x
  2. Step 2: Convert to fraction form
    2,205.16/3,305.50 = 1,425/x
  3. Step 3: Cross multiply
    2,205.16x = 3,305.50 × 1,425
  4. Step 4: Simplify right side
    2,205.16x = 4,710,337.50
  5. Step 5: Solve for x
    x = 4,710,337.50/2,205.16
  6. Step 6: Final answer
    x = 2,136.05

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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.