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Finding the Fourth Proportional to 2,835.87, 4,253.41 and 986.82

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Solution

The fourth proportional to 2,835.87, 4,253.41 and 986.82 is: 1,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,835.87 : 4,253.41 = 986.82 : x
  2. Step 2: Convert to fraction form
    2,835.87/4,253.41 = 986.82/x
  3. Step 3: Cross multiply
    2,835.87x = 4,253.41 × 986.82
  4. Step 4: Simplify right side
    2,835.87x = 4,197,350.06
  5. Step 5: Solve for x
    x = 4,197,350.06/2,835.87
  6. Step 6: Final answer
    x = 1,480.09

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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.