Home / 2,270.33-3,405.50-1,985.21

Finding the Fourth Proportional to 2,270.33, 3,405.50 and 1,985.21

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Solution

The fourth proportional to 2,270.33, 3,405.50 and 1,985.21 is: 2,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.33 : 3,405.50 = 1,985.21 : x
  2. Step 2: Convert to fraction form
    2,270.33/3,405.50 = 1,985.21/x
  3. Step 3: Cross multiply
    2,270.33x = 3,405.50 × 1,985.21
  4. Step 4: Simplify right side
    2,270.33x = 6,760,632.66
  5. Step 5: Solve for x
    x = 6,760,632.66/2,270.33
  6. Step 6: Final answer
    x = 2,977.82

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1.5x scale

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.