Home / 1,941.66-2,913.39-1,422.18

Finding the Fourth Proportional to 1,941.66, 2,913.39 and 1,422.18

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Solution

The fourth proportional to 1,941.66, 2,913.39 and 1,422.18 is: 2,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.66 : 2,913.39 = 1,422.18 : x
  2. Step 2: Convert to fraction form
    1,941.66/2,913.39 = 1,422.18/x
  3. Step 3: Cross multiply
    1,941.66x = 2,913.39 × 1,422.18
  4. Step 4: Simplify right side
    1,941.66x = 4,143,364.99
  5. Step 5: Solve for x
    x = 4,143,364.99/1,941.66
  6. Step 6: Final answer
    x = 2,133.93

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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.