Home / 4,878.69-7,317.26-1,591.76

Finding the Fourth Proportional to 4,878.69, 7,317.26 and 1,591.76

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Solution

The fourth proportional to 4,878.69, 7,317.26 and 1,591.76 is: 2,387.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.69 : 7,317.26 = 1,591.76 : x
  2. Step 2: Convert to fraction form
    4,878.69/7,317.26 = 1,591.76/x
  3. Step 3: Cross multiply
    4,878.69x = 7,317.26 × 1,591.76
  4. Step 4: Simplify right side
    4,878.69x = 11,647,277.23
  5. Step 5: Solve for x
    x = 11,647,277.23/4,878.69
  6. Step 6: Final answer
    x = 2,387.38

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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.