Home / 2,580.08-3,866.40-1,605.60

Finding the Fourth Proportional to 2,580.08, 3,866.40 and 1,605.60

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Solution

The fourth proportional to 2,580.08, 3,866.40 and 1,605.60 is: 2,406.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.08 : 3,866.40 = 1,605.60 : x
  2. Step 2: Convert to fraction form
    2,580.08/3,866.40 = 1,605.60/x
  3. Step 3: Cross multiply
    2,580.08x = 3,866.40 × 1,605.60
  4. Step 4: Simplify right side
    2,580.08x = 6,207,891.84
  5. Step 5: Solve for x
    x = 6,207,891.84/2,580.08
  6. Step 6: Final answer
    x = 2,406.09

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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.