Home / 3,140.84-4,712.04-2,218.21

Finding the Fourth Proportional to 3,140.84, 4,712.04 and 2,218.21

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Solution

The fourth proportional to 3,140.84, 4,712.04 and 2,218.21 is: 3,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.84 : 4,712.04 = 2,218.21 : x
  2. Step 2: Convert to fraction form
    3,140.84/4,712.04 = 2,218.21/x
  3. Step 3: Cross multiply
    3,140.84x = 4,712.04 × 2,218.21
  4. Step 4: Simplify right side
    3,140.84x = 10,452,259.60
  5. Step 5: Solve for x
    x = 10,452,259.60/3,140.84
  6. Step 6: Final answer
    x = 3,327.85

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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.