Home / 3,280.29-4,916.51-1,890.75

Finding the Fourth Proportional to 3,280.29, 4,916.51 and 1,890.75

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Solution

The fourth proportional to 3,280.29, 4,916.51 and 1,890.75 is: 2,833.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.29 : 4,916.51 = 1,890.75 : x
  2. Step 2: Convert to fraction form
    3,280.29/4,916.51 = 1,890.75/x
  3. Step 3: Cross multiply
    3,280.29x = 4,916.51 × 1,890.75
  4. Step 4: Simplify right side
    3,280.29x = 9,295,891.28
  5. Step 5: Solve for x
    x = 9,295,891.28/3,280.29
  6. Step 6: Final answer
    x = 2,833.86

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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.