Home / 4,900.25-7,350.14-3,415.21

Finding the Fourth Proportional to 4,900.25, 7,350.14 and 3,415.21

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Solution

The fourth proportional to 4,900.25, 7,350.14 and 3,415.21 is: 5,122.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,900.25 : 7,350.14 = 3,415.21 : x
  2. Step 2: Convert to fraction form
    4,900.25/7,350.14 = 3,415.21/x
  3. Step 3: Cross multiply
    4,900.25x = 7,350.14 × 3,415.21
  4. Step 4: Simplify right side
    4,900.25x = 25,102,303.14
  5. Step 5: Solve for x
    x = 25,102,303.14/4,900.25
  6. Step 6: Final answer
    x = 5,122.66

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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.