Home / 1,619.76-2,232.72-1,422.93

Finding the Fourth Proportional to 1,619.76, 2,232.72 and 1,422.93

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Solution

The fourth proportional to 1,619.76, 2,232.72 and 1,422.93 is: 1,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.76 : 2,232.72 = 1,422.93 : x
  2. Step 2: Convert to fraction form
    1,619.76/2,232.72 = 1,422.93/x
  3. Step 3: Cross multiply
    1,619.76x = 2,232.72 × 1,422.93
  4. Step 4: Simplify right side
    1,619.76x = 3,177,004.27
  5. Step 5: Solve for x
    x = 3,177,004.27/1,619.76
  6. Step 6: Final answer
    x = 1,961.40

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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.