Home / 2,419.10-3,628.65-664.10

Finding the Fourth Proportional to 2,419.10, 3,628.65 and 664.10

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Solution

The fourth proportional to 2,419.10, 3,628.65 and 664.10 is: 996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,419.10 : 3,628.65 = 664.10 : x
  2. Step 2: Convert to fraction form
    2,419.10/3,628.65 = 664.10/x
  3. Step 3: Cross multiply
    2,419.10x = 3,628.65 × 664.10
  4. Step 4: Simplify right side
    2,419.10x = 2,409,786.47
  5. Step 5: Solve for x
    x = 2,409,786.47/2,419.10
  6. Step 6: Final answer
    x = 996.15

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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.