Home / 2,284.12-3,152.22-1,538.20

Finding the Fourth Proportional to 2,284.12, 3,152.22 and 1,538.20

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Solution

The fourth proportional to 2,284.12, 3,152.22 and 1,538.20 is: 2,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.12 : 3,152.22 = 1,538.20 : x
  2. Step 2: Convert to fraction form
    2,284.12/3,152.22 = 1,538.20/x
  3. Step 3: Cross multiply
    2,284.12x = 3,152.22 × 1,538.20
  4. Step 4: Simplify right side
    2,284.12x = 4,848,744.80
  5. Step 5: Solve for x
    x = 4,848,744.80/2,284.12
  6. Step 6: Final answer
    x = 2,122.81

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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.