Home / 5,145.71-7,098.47-3,254.11

Finding the Fourth Proportional to 5,145.71, 7,098.47 and 3,254.11

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Solution

The fourth proportional to 5,145.71, 7,098.47 and 3,254.11 is: 4,489.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.71 : 7,098.47 = 3,254.11 : x
  2. Step 2: Convert to fraction form
    5,145.71/7,098.47 = 3,254.11/x
  3. Step 3: Cross multiply
    5,145.71x = 7,098.47 × 3,254.11
  4. Step 4: Simplify right side
    5,145.71x = 23,099,202.21
  5. Step 5: Solve for x
    x = 23,099,202.21/5,145.71
  6. Step 6: Final answer
    x = 4,489.02

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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.