Home / 5,419.64-8,083.66-5,255.57

Finding the Fourth Proportional to 5,419.64, 8,083.66 and 5,255.57

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Solution

The fourth proportional to 5,419.64, 8,083.66 and 5,255.57 is: 7,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.64 : 8,083.66 = 5,255.57 : x
  2. Step 2: Convert to fraction form
    5,419.64/8,083.66 = 5,255.57/x
  3. Step 3: Cross multiply
    5,419.64x = 8,083.66 × 5,255.57
  4. Step 4: Simplify right side
    5,419.64x = 42,484,207.14
  5. Step 5: Solve for x
    x = 42,484,207.14/5,419.64
  6. Step 6: Final answer
    x = 7,838.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.