Home / 2,580.66-3,871.80-1,265.22

Finding the Fourth Proportional to 2,580.66, 3,871.80 and 1,265.22

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Solution

The fourth proportional to 2,580.66, 3,871.80 and 1,265.22 is: 1,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.66 : 3,871.80 = 1,265.22 : x
  2. Step 2: Convert to fraction form
    2,580.66/3,871.80 = 1,265.22/x
  3. Step 3: Cross multiply
    2,580.66x = 3,871.80 × 1,265.22
  4. Step 4: Simplify right side
    2,580.66x = 4,898,678.80
  5. Step 5: Solve for x
    x = 4,898,678.80/2,580.66
  6. Step 6: Final answer
    x = 1,898.23

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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.