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Finding the Fourth Proportional to 5,907.90, 8,150.58 and 5,161.89

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Solution

The fourth proportional to 5,907.90, 8,150.58 and 5,161.89 is: 7,121.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,907.90 : 8,150.58 = 5,161.89 : x
  2. Step 2: Convert to fraction form
    5,907.90/8,150.58 = 5,161.89/x
  3. Step 3: Cross multiply
    5,907.90x = 8,150.58 × 5,161.89
  4. Step 4: Simplify right side
    5,907.90x = 42,072,397.40
  5. Step 5: Solve for x
    x = 42,072,397.40/5,907.90
  6. Step 6: Final answer
    x = 7,121.38

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1.5x scale

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.