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Finding the Fourth Proportional to 4,938.29, 7,407.20 and 2,745.62

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Solution

The fourth proportional to 4,938.29, 7,407.20 and 2,745.62 is: 4,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,938.29 : 7,407.20 = 2,745.62 : x
  2. Step 2: Convert to fraction form
    4,938.29/7,407.20 = 2,745.62/x
  3. Step 3: Cross multiply
    4,938.29x = 7,407.20 × 2,745.62
  4. Step 4: Simplify right side
    4,938.29x = 20,337,326.29
  5. Step 5: Solve for x
    x = 20,337,326.29/4,938.29
  6. Step 6: Final answer
    x = 4,118.30

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1.5x scale

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.