Home / 4,221.72-6,330.76-1,448.66

Finding the Fourth Proportional to 4,221.72, 6,330.76 and 1,448.66

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Solution

The fourth proportional to 4,221.72, 6,330.76 and 1,448.66 is: 2,172.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,221.72 : 6,330.76 = 1,448.66 : x
  2. Step 2: Convert to fraction form
    4,221.72/6,330.76 = 1,448.66/x
  3. Step 3: Cross multiply
    4,221.72x = 6,330.76 × 1,448.66
  4. Step 4: Simplify right side
    4,221.72x = 9,171,130.99
  5. Step 5: Solve for x
    x = 9,171,130.99/4,221.72
  6. Step 6: Final answer
    x = 2,172.37

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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.