Home / 2,986.22-4,123.75-2,543.96

Finding the Fourth Proportional to 2,986.22, 4,123.75 and 2,543.96

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Solution

The fourth proportional to 2,986.22, 4,123.75 and 2,543.96 is: 3,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.22 : 4,123.75 = 2,543.96 : x
  2. Step 2: Convert to fraction form
    2,986.22/4,123.75 = 2,543.96/x
  3. Step 3: Cross multiply
    2,986.22x = 4,123.75 × 2,543.96
  4. Step 4: Simplify right side
    2,986.22x = 10,490,655.05
  5. Step 5: Solve for x
    x = 10,490,655.05/2,986.22
  6. Step 6: Final answer
    x = 3,513.02

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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.