Home / 5,195.10-7,791.12-1,907.40

Finding the Fourth Proportional to 5,195.10, 7,791.12 and 1,907.40

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Solution

The fourth proportional to 5,195.10, 7,791.12 and 1,907.40 is: 2,860.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,195.10 : 7,791.12 = 1,907.40 : x
  2. Step 2: Convert to fraction form
    5,195.10/7,791.12 = 1,907.40/x
  3. Step 3: Cross multiply
    5,195.10x = 7,791.12 × 1,907.40
  4. Step 4: Simplify right side
    5,195.10x = 14,860,782.29
  5. Step 5: Solve for x
    x = 14,860,782.29/5,195.10
  6. Step 6: Final answer
    x = 2,860.54

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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.