Home / 4,280.19-6,387.87-3,927.21

Finding the Fourth Proportional to 4,280.19, 6,387.87 and 3,927.21

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Solution

The fourth proportional to 4,280.19, 6,387.87 and 3,927.21 is: 5,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.19 : 6,387.87 = 3,927.21 : x
  2. Step 2: Convert to fraction form
    4,280.19/6,387.87 = 3,927.21/x
  3. Step 3: Cross multiply
    4,280.19x = 6,387.87 × 3,927.21
  4. Step 4: Simplify right side
    4,280.19x = 25,086,497.72
  5. Step 5: Solve for x
    x = 25,086,497.72/4,280.19
  6. Step 6: Final answer
    x = 5,861.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.