Home / 1,591.36-2,194.64-1,031.26

Finding the Fourth Proportional to 1,591.36, 2,194.64 and 1,031.26

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Solution

The fourth proportional to 1,591.36, 2,194.64 and 1,031.26 is: 1,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.36 : 2,194.64 = 1,031.26 : x
  2. Step 2: Convert to fraction form
    1,591.36/2,194.64 = 1,031.26/x
  3. Step 3: Cross multiply
    1,591.36x = 2,194.64 × 1,031.26
  4. Step 4: Simplify right side
    1,591.36x = 2,263,244.45
  5. Step 5: Solve for x
    x = 2,263,244.45/1,591.36
  6. Step 6: Final answer
    x = 1,422.21

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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.