Home / 3,612.65-5,418.90-1,664.85

Finding the Fourth Proportional to 3,612.65, 5,418.90 and 1,664.85

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Solution

The fourth proportional to 3,612.65, 5,418.90 and 1,664.85 is: 2,497.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.65 : 5,418.90 = 1,664.85 : x
  2. Step 2: Convert to fraction form
    3,612.65/5,418.90 = 1,664.85/x
  3. Step 3: Cross multiply
    3,612.65x = 5,418.90 × 1,664.85
  4. Step 4: Simplify right side
    3,612.65x = 9,021,673.90
  5. Step 5: Solve for x
    x = 9,021,673.90/3,612.65
  6. Step 6: Final answer
    x = 2,497.25

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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.