Home / 3,259.40-4,886.96-2,147.49

Finding the Fourth Proportional to 3,259.40, 4,886.96 and 2,147.49

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Solution

The fourth proportional to 3,259.40, 4,886.96 and 2,147.49 is: 3,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,259.40 : 4,886.96 = 2,147.49 : x
  2. Step 2: Convert to fraction form
    3,259.40/4,886.96 = 2,147.49/x
  3. Step 3: Cross multiply
    3,259.40x = 4,886.96 × 2,147.49
  4. Step 4: Simplify right side
    3,259.40x = 10,494,686.99
  5. Step 5: Solve for x
    x = 10,494,686.99/3,259.40
  6. Step 6: Final answer
    x = 3,219.83

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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.