Home / 2,212.40-3,052.56-1,425.50

Finding the Fourth Proportional to 2,212.40, 3,052.56 and 1,425.50

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Solution

The fourth proportional to 2,212.40, 3,052.56 and 1,425.50 is: 1,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,212.40 : 3,052.56 = 1,425.50 : x
  2. Step 2: Convert to fraction form
    2,212.40/3,052.56 = 1,425.50/x
  3. Step 3: Cross multiply
    2,212.40x = 3,052.56 × 1,425.50
  4. Step 4: Simplify right side
    2,212.40x = 4,351,424.28
  5. Step 5: Solve for x
    x = 4,351,424.28/2,212.40
  6. Step 6: Final answer
    x = 1,966.83

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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.