Home / 1,729.11-2,376.33-1,619.76

Finding the Fourth Proportional to 1,729.11, 2,376.33 and 1,619.76

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Solution

The fourth proportional to 1,729.11, 2,376.33 and 1,619.76 is: 2,226.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.11 : 2,376.33 = 1,619.76 : x
  2. Step 2: Convert to fraction form
    1,729.11/2,376.33 = 1,619.76/x
  3. Step 3: Cross multiply
    1,729.11x = 2,376.33 × 1,619.76
  4. Step 4: Simplify right side
    1,729.11x = 3,849,084.28
  5. Step 5: Solve for x
    x = 3,849,084.28/1,729.11
  6. Step 6: Final answer
    x = 2,226.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.