Home / 4,192.72-6,290.16-1,271.36

Finding the Fourth Proportional to 4,192.72, 6,290.16 and 1,271.36

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Solution

The fourth proportional to 4,192.72, 6,290.16 and 1,271.36 is: 1,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.72 : 6,290.16 = 1,271.36 : x
  2. Step 2: Convert to fraction form
    4,192.72/6,290.16 = 1,271.36/x
  3. Step 3: Cross multiply
    4,192.72x = 6,290.16 × 1,271.36
  4. Step 4: Simplify right side
    4,192.72x = 7,997,057.82
  5. Step 5: Solve for x
    x = 7,997,057.82/4,192.72
  6. Step 6: Final answer
    x = 1,907.37

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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.