Home / 2,272.12-3,136.98-1,433.96

Finding the Fourth Proportional to 2,272.12, 3,136.98 and 1,433.96

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Solution

The fourth proportional to 2,272.12, 3,136.98 and 1,433.96 is: 1,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.12 : 3,136.98 = 1,433.96 : x
  2. Step 2: Convert to fraction form
    2,272.12/3,136.98 = 1,433.96/x
  3. Step 3: Cross multiply
    2,272.12x = 3,136.98 × 1,433.96
  4. Step 4: Simplify right side
    2,272.12x = 4,498,303.84
  5. Step 5: Solve for x
    x = 4,498,303.84/2,272.12
  6. Step 6: Final answer
    x = 1,979.78

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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.