Home / 3,280.27-4,920.95-1,636.87

Finding the Fourth Proportional to 3,280.27, 4,920.95 and 1,636.87

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Solution

The fourth proportional to 3,280.27, 4,920.95 and 1,636.87 is: 2,455.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.27 : 4,920.95 = 1,636.87 : x
  2. Step 2: Convert to fraction form
    3,280.27/4,920.95 = 1,636.87/x
  3. Step 3: Cross multiply
    3,280.27x = 4,920.95 × 1,636.87
  4. Step 4: Simplify right side
    3,280.27x = 8,054,955.43
  5. Step 5: Solve for x
    x = 8,054,955.43/3,280.27
  6. Step 6: Final answer
    x = 2,455.58

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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.