Home / 3,318.04-4,958.60-2,213.20

Finding the Fourth Proportional to 3,318.04, 4,958.60 and 2,213.20

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Solution

The fourth proportional to 3,318.04, 4,958.60 and 2,213.20 is: 3,307.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.04 : 4,958.60 = 2,213.20 : x
  2. Step 2: Convert to fraction form
    3,318.04/4,958.60 = 2,213.20/x
  3. Step 3: Cross multiply
    3,318.04x = 4,958.60 × 2,213.20
  4. Step 4: Simplify right side
    3,318.04x = 10,974,373.52
  5. Step 5: Solve for x
    x = 10,974,373.52/3,318.04
  6. Step 6: Final answer
    x = 3,307.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.