Home / 5,407.08-8,103.33-2,938.20

Finding the Fourth Proportional to 5,407.08, 8,103.33 and 2,938.20

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Solution

The fourth proportional to 5,407.08, 8,103.33 and 2,938.20 is: 4,403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,407.08 : 8,103.33 = 2,938.20 : x
  2. Step 2: Convert to fraction form
    5,407.08/8,103.33 = 2,938.20/x
  3. Step 3: Cross multiply
    5,407.08x = 8,103.33 × 2,938.20
  4. Step 4: Simplify right side
    5,407.08x = 23,809,204.21
  5. Step 5: Solve for x
    x = 23,809,204.21/5,407.08
  6. Step 6: Final answer
    x = 4,403.34

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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.