Home / 3,907.59-5,391.41-2,511.15

Finding the Fourth Proportional to 3,907.59, 5,391.41 and 2,511.15

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Solution

The fourth proportional to 3,907.59, 5,391.41 and 2,511.15 is: 3,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,907.59 : 5,391.41 = 2,511.15 : x
  2. Step 2: Convert to fraction form
    3,907.59/5,391.41 = 2,511.15/x
  3. Step 3: Cross multiply
    3,907.59x = 5,391.41 × 2,511.15
  4. Step 4: Simplify right side
    3,907.59x = 13,538,626.67
  5. Step 5: Solve for x
    x = 13,538,626.67/3,907.59
  6. Step 6: Final answer
    x = 3,464.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.