Home / 3,390.71-5,083.02-2,154.65

Finding the Fourth Proportional to 3,390.71, 5,083.02 and 2,154.65

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Solution

The fourth proportional to 3,390.71, 5,083.02 and 2,154.65 is: 3,230.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.71 : 5,083.02 = 2,154.65 : x
  2. Step 2: Convert to fraction form
    3,390.71/5,083.02 = 2,154.65/x
  3. Step 3: Cross multiply
    3,390.71x = 5,083.02 × 2,154.65
  4. Step 4: Simplify right side
    3,390.71x = 10,952,103.63
  5. Step 5: Solve for x
    x = 10,952,103.63/3,390.71
  6. Step 6: Final answer
    x = 3,230.04

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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.