Home / 2,631.29-3,941.47-1,245.74

Finding the Fourth Proportional to 2,631.29, 3,941.47 and 1,245.74

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Solution

The fourth proportional to 2,631.29, 3,941.47 and 1,245.74 is: 1,866.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.29 : 3,941.47 = 1,245.74 : x
  2. Step 2: Convert to fraction form
    2,631.29/3,941.47 = 1,245.74/x
  3. Step 3: Cross multiply
    2,631.29x = 3,941.47 × 1,245.74
  4. Step 4: Simplify right side
    2,631.29x = 4,910,027.13
  5. Step 5: Solve for x
    x = 4,910,027.13/2,631.29
  6. Step 6: Final answer
    x = 1,866.02

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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.