Home / 3,547.31-5,318.24-2,160.38

Finding the Fourth Proportional to 3,547.31, 5,318.24 and 2,160.38

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Solution

The fourth proportional to 3,547.31, 5,318.24 and 2,160.38 is: 3,238.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.31 : 5,318.24 = 2,160.38 : x
  2. Step 2: Convert to fraction form
    3,547.31/5,318.24 = 2,160.38/x
  3. Step 3: Cross multiply
    3,547.31x = 5,318.24 × 2,160.38
  4. Step 4: Simplify right side
    3,547.31x = 11,489,381.94
  5. Step 5: Solve for x
    x = 11,489,381.94/3,547.31
  6. Step 6: Final answer
    x = 3,238.90

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1.5x scale

Why These Related Problems?

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