Home / 2,655.75-3,665.40-2,025.30

Finding the Fourth Proportional to 2,655.75, 3,665.40 and 2,025.30

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Solution

The fourth proportional to 2,655.75, 3,665.40 and 2,025.30 is: 2,795.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,655.75 : 3,665.40 = 2,025.30 : x
  2. Step 2: Convert to fraction form
    2,655.75/3,665.40 = 2,025.30/x
  3. Step 3: Cross multiply
    2,655.75x = 3,665.40 × 2,025.30
  4. Step 4: Simplify right side
    2,655.75x = 7,423,534.62
  5. Step 5: Solve for x
    x = 7,423,534.62/2,655.75
  6. Step 6: Final answer
    x = 2,795.27

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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.