Home / 2,649.30-3,651.63-1,861.98

Finding the Fourth Proportional to 2,649.30, 3,651.63 and 1,861.98

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Solution

The fourth proportional to 2,649.30, 3,651.63 and 1,861.98 is: 2,566.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649.30 : 3,651.63 = 1,861.98 : x
  2. Step 2: Convert to fraction form
    2,649.30/3,651.63 = 1,861.98/x
  3. Step 3: Cross multiply
    2,649.30x = 3,651.63 × 1,861.98
  4. Step 4: Simplify right side
    2,649.30x = 6,799,262.03
  5. Step 5: Solve for x
    x = 6,799,262.03/2,649.30
  6. Step 6: Final answer
    x = 2,566.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.