Home / 3,156.62-4,733.78-1,307.39

Finding the Fourth Proportional to 3,156.62, 4,733.78 and 1,307.39

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Solution

The fourth proportional to 3,156.62, 4,733.78 and 1,307.39 is: 1,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,156.62 : 4,733.78 = 1,307.39 : x
  2. Step 2: Convert to fraction form
    3,156.62/4,733.78 = 1,307.39/x
  3. Step 3: Cross multiply
    3,156.62x = 4,733.78 × 1,307.39
  4. Step 4: Simplify right side
    3,156.62x = 6,188,866.43
  5. Step 5: Solve for x
    x = 6,188,866.43/3,156.62
  6. Step 6: Final answer
    x = 1,960.60

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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.