Home / 4,145.31-5,715.84-3,084.96

Finding the Fourth Proportional to 4,145.31, 5,715.84 and 3,084.96

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Solution

The fourth proportional to 4,145.31, 5,715.84 and 3,084.96 is: 4,253.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,145.31 : 5,715.84 = 3,084.96 : x
  2. Step 2: Convert to fraction form
    4,145.31/5,715.84 = 3,084.96/x
  3. Step 3: Cross multiply
    4,145.31x = 5,715.84 × 3,084.96
  4. Step 4: Simplify right side
    4,145.31x = 17,633,137.77
  5. Step 5: Solve for x
    x = 17,633,137.77/4,145.31
  6. Step 6: Final answer
    x = 4,253.76

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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.