Home / 3,280.66-4,527.68-2,021.47

Finding the Fourth Proportional to 3,280.66, 4,527.68 and 2,021.47

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Solution

The fourth proportional to 3,280.66, 4,527.68 and 2,021.47 is: 2,789.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,280.66 : 4,527.68 = 2,021.47 : x
  2. Step 2: Convert to fraction form
    3,280.66/4,527.68 = 2,021.47/x
  3. Step 3: Cross multiply
    3,280.66x = 4,527.68 × 2,021.47
  4. Step 4: Simplify right side
    3,280.66x = 9,152,569.29
  5. Step 5: Solve for x
    x = 9,152,569.29/3,280.66
  6. Step 6: Final answer
    x = 2,789.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.