Home / 5,139.96-7,702.65-3,756.48

Finding the Fourth Proportional to 5,139.96, 7,702.65 and 3,756.48

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Solution

The fourth proportional to 5,139.96, 7,702.65 and 3,756.48 is: 5,629.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,139.96 : 7,702.65 = 3,756.48 : x
  2. Step 2: Convert to fraction form
    5,139.96/7,702.65 = 3,756.48/x
  3. Step 3: Cross multiply
    5,139.96x = 7,702.65 × 3,756.48
  4. Step 4: Simplify right side
    5,139.96x = 28,934,850.67
  5. Step 5: Solve for x
    x = 28,934,850.67/5,139.96
  6. Step 6: Final answer
    x = 5,629.39

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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.