Home / 1,489.46-2,236.08-943.94

Finding the Fourth Proportional to 1,489.46, 2,236.08 and 943.94

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Solution

The fourth proportional to 1,489.46, 2,236.08 and 943.94 is: 1,417.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489.46 : 2,236.08 = 943.94 : x
  2. Step 2: Convert to fraction form
    1,489.46/2,236.08 = 943.94/x
  3. Step 3: Cross multiply
    1,489.46x = 2,236.08 × 943.94
  4. Step 4: Simplify right side
    1,489.46x = 2,110,725.36
  5. Step 5: Solve for x
    x = 2,110,725.36/1,489.46
  6. Step 6: Final answer
    x = 1,417.11

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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.