Home / 1,591.46-2,194.78-1,031.34

Finding the Fourth Proportional to 1,591.46, 2,194.78 and 1,031.34

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Solution

The fourth proportional to 1,591.46, 2,194.78 and 1,031.34 is: 1,422.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.46 : 2,194.78 = 1,031.34 : x
  2. Step 2: Convert to fraction form
    1,591.46/2,194.78 = 1,031.34/x
  3. Step 3: Cross multiply
    1,591.46x = 2,194.78 × 1,031.34
  4. Step 4: Simplify right side
    1,591.46x = 2,263,564.41
  5. Step 5: Solve for x
    x = 2,263,564.41/1,591.46
  6. Step 6: Final answer
    x = 1,422.32

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1.5x scale

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.