Home / 1,938.47-2,674.94-1,141.86

Finding the Fourth Proportional to 1,938.47, 2,674.94 and 1,141.86

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Solution

The fourth proportional to 1,938.47, 2,674.94 and 1,141.86 is: 1,575.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938.47 : 2,674.94 = 1,141.86 : x
  2. Step 2: Convert to fraction form
    1,938.47/2,674.94 = 1,141.86/x
  3. Step 3: Cross multiply
    1,938.47x = 2,674.94 × 1,141.86
  4. Step 4: Simplify right side
    1,938.47x = 3,054,409.84
  5. Step 5: Solve for x
    x = 3,054,409.84/1,938.47
  6. Step 6: Final answer
    x = 1,575.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.