Home / 1,620.84-2,234.28-1,270.92

Finding the Fourth Proportional to 1,620.84, 2,234.28 and 1,270.92

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Solution

The fourth proportional to 1,620.84, 2,234.28 and 1,270.92 is: 1,751.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620.84 : 2,234.28 = 1,270.92 : x
  2. Step 2: Convert to fraction form
    1,620.84/2,234.28 = 1,270.92/x
  3. Step 3: Cross multiply
    1,620.84x = 2,234.28 × 1,270.92
  4. Step 4: Simplify right side
    1,620.84x = 2,839,591.14
  5. Step 5: Solve for x
    x = 2,839,591.14/1,620.84
  6. Step 6: Final answer
    x = 1,751.93

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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.