Home / 2,543.14-3,811.98-1,665.31

Finding the Fourth Proportional to 2,543.14, 3,811.98 and 1,665.31

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Solution

The fourth proportional to 2,543.14, 3,811.98 and 1,665.31 is: 2,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,543.14 : 3,811.98 = 1,665.31 : x
  2. Step 2: Convert to fraction form
    2,543.14/3,811.98 = 1,665.31/x
  3. Step 3: Cross multiply
    2,543.14x = 3,811.98 × 1,665.31
  4. Step 4: Simplify right side
    2,543.14x = 6,348,128.41
  5. Step 5: Solve for x
    x = 6,348,128.41/2,543.14
  6. Step 6: Final answer
    x = 2,496.18

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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.