Home / 1,729.14-2,594.61-1,320.90

Finding the Fourth Proportional to 1,729.14, 2,594.61 and 1,320.90

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Solution

The fourth proportional to 1,729.14, 2,594.61 and 1,320.90 is: 1,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,729.14 : 2,594.61 = 1,320.90 : x
  2. Step 2: Convert to fraction form
    1,729.14/2,594.61 = 1,320.90/x
  3. Step 3: Cross multiply
    1,729.14x = 2,594.61 × 1,320.90
  4. Step 4: Simplify right side
    1,729.14x = 3,427,220.35
  5. Step 5: Solve for x
    x = 3,427,220.35/1,729.14
  6. Step 6: Final answer
    x = 1,982.04

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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.