Home / 2,580.08-3,861.90-1,345.79

Finding the Fourth Proportional to 2,580.08, 3,861.90 and 1,345.79

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Solution

The fourth proportional to 2,580.08, 3,861.90 and 1,345.79 is: 2,014.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.08 : 3,861.90 = 1,345.79 : x
  2. Step 2: Convert to fraction form
    2,580.08/3,861.90 = 1,345.79/x
  3. Step 3: Cross multiply
    2,580.08x = 3,861.90 × 1,345.79
  4. Step 4: Simplify right side
    2,580.08x = 5,197,316.06
  5. Step 5: Solve for x
    x = 5,197,316.06/2,580.08
  6. Step 6: Final answer
    x = 2,014.41

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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.