Home / 3,132.15-4,322.42-1,715.82

Finding the Fourth Proportional to 3,132.15, 4,322.42 and 1,715.82

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Solution

The fourth proportional to 3,132.15, 4,322.42 and 1,715.82 is: 2,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.15 : 4,322.42 = 1,715.82 : x
  2. Step 2: Convert to fraction form
    3,132.15/4,322.42 = 1,715.82/x
  3. Step 3: Cross multiply
    3,132.15x = 4,322.42 × 1,715.82
  4. Step 4: Simplify right side
    3,132.15x = 7,416,473.07
  5. Step 5: Solve for x
    x = 7,416,473.07/3,132.15
  6. Step 6: Final answer
    x = 2,367.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.