Home / 5,133.21-7,700.63-2,212.35

Finding the Fourth Proportional to 5,133.21, 7,700.63 and 2,212.35

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Solution

The fourth proportional to 5,133.21, 7,700.63 and 2,212.35 is: 3,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.21 : 7,700.63 = 2,212.35 : x
  2. Step 2: Convert to fraction form
    5,133.21/7,700.63 = 2,212.35/x
  3. Step 3: Cross multiply
    5,133.21x = 7,700.63 × 2,212.35
  4. Step 4: Simplify right side
    5,133.21x = 17,036,477.72
  5. Step 5: Solve for x
    x = 17,036,477.72/5,133.21
  6. Step 6: Final answer
    x = 3,318.87

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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.