Home / 2,580.35-3,866.25-1,345.91

Finding the Fourth Proportional to 2,580.35, 3,866.25 and 1,345.91

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Solution

The fourth proportional to 2,580.35, 3,866.25 and 1,345.91 is: 2,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.35 : 3,866.25 = 1,345.91 : x
  2. Step 2: Convert to fraction form
    2,580.35/3,866.25 = 1,345.91/x
  3. Step 3: Cross multiply
    2,580.35x = 3,866.25 × 1,345.91
  4. Step 4: Simplify right side
    2,580.35x = 5,203,605.21
  5. Step 5: Solve for x
    x = 5,203,605.21/2,580.35
  6. Step 6: Final answer
    x = 2,016.63

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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.