Home / 4,907.12-7,356.52-2,131.70

Finding the Fourth Proportional to 4,907.12, 7,356.52 and 2,131.70

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Solution

The fourth proportional to 4,907.12, 7,356.52 and 2,131.70 is: 3,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,907.12 : 7,356.52 = 2,131.70 : x
  2. Step 2: Convert to fraction form
    4,907.12/7,356.52 = 2,131.70/x
  3. Step 3: Cross multiply
    4,907.12x = 7,356.52 × 2,131.70
  4. Step 4: Simplify right side
    4,907.12x = 15,681,893.68
  5. Step 5: Solve for x
    x = 15,681,893.68/4,907.12
  6. Step 6: Final answer
    x = 3,195.74

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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.