Home / 2,663.02-3,990.37-1,687.07

Finding the Fourth Proportional to 2,663.02, 3,990.37 and 1,687.07

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Solution

The fourth proportional to 2,663.02, 3,990.37 and 1,687.07 is: 2,527.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,663.02 : 3,990.37 = 1,687.07 : x
  2. Step 2: Convert to fraction form
    2,663.02/3,990.37 = 1,687.07/x
  3. Step 3: Cross multiply
    2,663.02x = 3,990.37 × 1,687.07
  4. Step 4: Simplify right side
    2,663.02x = 6,732,005.13
  5. Step 5: Solve for x
    x = 6,732,005.13/2,663.02
  6. Step 6: Final answer
    x = 2,527.96

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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.