Home / 1,720.60-2,579.34-1,104.48

Finding the Fourth Proportional to 1,720.60, 2,579.34 and 1,104.48

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Solution

The fourth proportional to 1,720.60, 2,579.34 and 1,104.48 is: 1,655.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720.60 : 2,579.34 = 1,104.48 : x
  2. Step 2: Convert to fraction form
    1,720.60/2,579.34 = 1,104.48/x
  3. Step 3: Cross multiply
    1,720.60x = 2,579.34 × 1,104.48
  4. Step 4: Simplify right side
    1,720.60x = 2,848,829.44
  5. Step 5: Solve for x
    x = 2,848,829.44/1,720.60
  6. Step 6: Final answer
    x = 1,655.72

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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.