Home / 4,192.92-6,291.02-1,271.52

Finding the Fourth Proportional to 4,192.92, 6,291.02 and 1,271.52

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Solution

The fourth proportional to 4,192.92, 6,291.02 and 1,271.52 is: 1,907.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,192.92 : 6,291.02 = 1,271.52 : x
  2. Step 2: Convert to fraction form
    4,192.92/6,291.02 = 1,271.52/x
  3. Step 3: Cross multiply
    4,192.92x = 6,291.02 × 1,271.52
  4. Step 4: Simplify right side
    4,192.92x = 7,999,157.75
  5. Step 5: Solve for x
    x = 7,999,157.75/4,192.92
  6. Step 6: Final answer
    x = 1,907.78

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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.