Home / 5,332.80-8,001.28-2,212.01

Finding the Fourth Proportional to 5,332.80, 8,001.28 and 2,212.01

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Solution

The fourth proportional to 5,332.80, 8,001.28 and 2,212.01 is: 3,318.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,332.80 : 8,001.28 = 2,212.01 : x
  2. Step 2: Convert to fraction form
    5,332.80/8,001.28 = 2,212.01/x
  3. Step 3: Cross multiply
    5,332.80x = 8,001.28 × 2,212.01
  4. Step 4: Simplify right side
    5,332.80x = 17,698,904.14
  5. Step 5: Solve for x
    x = 17,698,904.14/5,332.80
  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.