Home / 2,655.55-3,979.68-1,558.45

Finding the Fourth Proportional to 2,655.55, 3,979.68 and 1,558.45

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Solution

The fourth proportional to 2,655.55, 3,979.68 and 1,558.45 is: 2,335.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.55 : 3,979.68 = 1,558.45 : x
  2. Step 2: Convert to fraction form
    2,655.55/3,979.68 = 1,558.45/x
  3. Step 3: Cross multiply
    2,655.55x = 3,979.68 × 1,558.45
  4. Step 4: Simplify right side
    2,655.55x = 6,202,132.30
  5. Step 5: Solve for x
    x = 6,202,132.30/2,655.55
  6. Step 6: Final answer
    x = 2,335.54

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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.