Home / 5,079.71-7,618.69-1,381.46

Finding the Fourth Proportional to 5,079.71, 7,618.69 and 1,381.46

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Solution

The fourth proportional to 5,079.71, 7,618.69 and 1,381.46 is: 2,071.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.71 : 7,618.69 = 1,381.46 : x
  2. Step 2: Convert to fraction form
    5,079.71/7,618.69 = 1,381.46/x
  3. Step 3: Cross multiply
    5,079.71x = 7,618.69 × 1,381.46
  4. Step 4: Simplify right side
    5,079.71x = 10,524,879.12
  5. Step 5: Solve for x
    x = 10,524,879.12/5,079.71
  6. Step 6: Final answer
    x = 2,071.94

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.