Home / 4,280.49-6,421.41-1,359.48

Finding the Fourth Proportional to 4,280.49, 6,421.41 and 1,359.48

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Solution

The fourth proportional to 4,280.49, 6,421.41 and 1,359.48 is: 2,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.49 : 6,421.41 = 1,359.48 : x
  2. Step 2: Convert to fraction form
    4,280.49/6,421.41 = 1,359.48/x
  3. Step 3: Cross multiply
    4,280.49x = 6,421.41 × 1,359.48
  4. Step 4: Simplify right side
    4,280.49x = 8,729,778.47
  5. Step 5: Solve for x
    x = 8,729,778.47/4,280.49
  6. Step 6: Final answer
    x = 2,039.43

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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.