Home / 2,580.85-3,871.55-1,606.15

Finding the Fourth Proportional to 2,580.85, 3,871.55 and 1,606.15

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Solution

The fourth proportional to 2,580.85, 3,871.55 and 1,606.15 is: 2,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.85 : 3,871.55 = 1,606.15 : x
  2. Step 2: Convert to fraction form
    2,580.85/3,871.55 = 1,606.15/x
  3. Step 3: Cross multiply
    2,580.85x = 3,871.55 × 1,606.15
  4. Step 4: Simplify right side
    2,580.85x = 6,218,290.03
  5. Step 5: Solve for x
    x = 6,218,290.03/2,580.85
  6. Step 6: Final answer
    x = 2,409.40

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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.