Home / 1,483.35-2,224.89-387.65

Finding the Fourth Proportional to 1,483.35, 2,224.89 and 387.65

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Solution

The fourth proportional to 1,483.35, 2,224.89 and 387.65 is: 581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,483.35 : 2,224.89 = 387.65 : x
  2. Step 2: Convert to fraction form
    1,483.35/2,224.89 = 387.65/x
  3. Step 3: Cross multiply
    1,483.35x = 2,224.89 × 387.65
  4. Step 4: Simplify right side
    1,483.35x = 862,467.48
  5. Step 5: Solve for x
    x = 862,467.48/1,483.35
  6. Step 6: Final answer
    x = 581.43

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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.