Home / 1,619.64-2,422.98-1,295.64

Finding the Fourth Proportional to 1,619.64, 2,422.98 and 1,295.64

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Solution

The fourth proportional to 1,619.64, 2,422.98 and 1,295.64 is: 1,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619.64 : 2,422.98 = 1,295.64 : x
  2. Step 2: Convert to fraction form
    1,619.64/2,422.98 = 1,295.64/x
  3. Step 3: Cross multiply
    1,619.64x = 2,422.98 × 1,295.64
  4. Step 4: Simplify right side
    1,619.64x = 3,139,309.81
  5. Step 5: Solve for x
    x = 3,139,309.81/1,619.64
  6. Step 6: Final answer
    x = 1,938.28

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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.