Home / 1,757.64-2,628.90-1,320.60

Finding the Fourth Proportional to 1,757.64, 2,628.90 and 1,320.60

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Solution

The fourth proportional to 1,757.64, 2,628.90 and 1,320.60 is: 1,975.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,757.64 : 2,628.90 = 1,320.60 : x
  2. Step 2: Convert to fraction form
    1,757.64/2,628.90 = 1,320.60/x
  3. Step 3: Cross multiply
    1,757.64x = 2,628.90 × 1,320.60
  4. Step 4: Simplify right side
    1,757.64x = 3,471,725.34
  5. Step 5: Solve for x
    x = 3,471,725.34/1,757.64
  6. Step 6: Final answer
    x = 1,975.22

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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.