Home / 1,483.20-2,224.28-659.99

Finding the Fourth Proportional to 1,483.20, 2,224.28 and 659.99

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Solution

The fourth proportional to 1,483.20, 2,224.28 and 659.99 is: 989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.20 : 2,224.28 = 659.99 : x
  2. Step 2: Convert to fraction form
    1,483.20/2,224.28 = 659.99/x
  3. Step 3: Cross multiply
    1,483.20x = 2,224.28 × 659.99
  4. Step 4: Simplify right side
    1,483.20x = 1,467,988.14
  5. Step 5: Solve for x
    x = 1,467,988.14/1,483.20
  6. Step 6: Final answer
    x = 989.74

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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.