Home / 1,935.42-2,896.43-1,521.11

Finding the Fourth Proportional to 1,935.42, 2,896.43 and 1,521.11

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Solution

The fourth proportional to 1,935.42, 2,896.43 and 1,521.11 is: 2,276.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.42 : 2,896.43 = 1,521.11 : x
  2. Step 2: Convert to fraction form
    1,935.42/2,896.43 = 1,521.11/x
  3. Step 3: Cross multiply
    1,935.42x = 2,896.43 × 1,521.11
  4. Step 4: Simplify right side
    1,935.42x = 4,405,766.55
  5. Step 5: Solve for x
    x = 4,405,766.55/1,935.42
  6. Step 6: Final answer
    x = 2,276.39

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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.