Home / 4,192.96-6,289.76-1,271.48

Finding the Fourth Proportional to 4,192.96, 6,289.76 and 1,271.48

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Solution

The fourth proportional to 4,192.96, 6,289.76 and 1,271.48 is: 1,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.96 : 6,289.76 = 1,271.48 : x
  2. Step 2: Convert to fraction form
    4,192.96/6,289.76 = 1,271.48/x
  3. Step 3: Cross multiply
    4,192.96x = 6,289.76 × 1,271.48
  4. Step 4: Simplify right side
    4,192.96x = 7,997,304.04
  5. Step 5: Solve for x
    x = 7,997,304.04/4,192.96
  6. Step 6: Final answer
    x = 1,907.32

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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.