Home / 3,208.14-4,812.60-899.64

Finding the Fourth Proportional to 3,208.14, 4,812.60 and 899.64

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Solution

The fourth proportional to 3,208.14, 4,812.60 and 899.64 is: 1,349.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,208.14 : 4,812.60 = 899.64 : x
  2. Step 2: Convert to fraction form
    3,208.14/4,812.60 = 899.64/x
  3. Step 3: Cross multiply
    3,208.14x = 4,812.60 × 899.64
  4. Step 4: Simplify right side
    3,208.14x = 4,329,607.46
  5. Step 5: Solve for x
    x = 4,329,607.46/3,208.14
  6. Step 6: Final answer
    x = 1,349.57

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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.