Home / 4,878.69-7,319.38-1,591.37

Finding the Fourth Proportional to 4,878.69, 7,319.38 and 1,591.37

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Solution

The fourth proportional to 4,878.69, 7,319.38 and 1,591.37 is: 2,387.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.69 : 7,319.38 = 1,591.37 : x
  2. Step 2: Convert to fraction form
    4,878.69/7,319.38 = 1,591.37/x
  3. Step 3: Cross multiply
    4,878.69x = 7,319.38 × 1,591.37
  4. Step 4: Simplify right side
    4,878.69x = 11,647,841.75
  5. Step 5: Solve for x
    x = 11,647,841.75/4,878.69
  6. Step 6: Final answer
    x = 2,387.49

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Double scale
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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.