Home / 5,918.28-8,874.54-3,146.28

Finding the Fourth Proportional to 5,918.28, 8,874.54 and 3,146.28

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Solution

The fourth proportional to 5,918.28, 8,874.54 and 3,146.28 is: 4,717.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,918.28 : 8,874.54 = 3,146.28 : x
  2. Step 2: Convert to fraction form
    5,918.28/8,874.54 = 3,146.28/x
  3. Step 3: Cross multiply
    5,918.28x = 8,874.54 × 3,146.28
  4. Step 4: Simplify right side
    5,918.28x = 27,921,787.71
  5. Step 5: Solve for x
    x = 27,921,787.71/5,918.28
  6. Step 6: Final answer
    x = 4,717.89

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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.